20128609920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1\times {\mathrm{1297}}^1$

素因数の和:1515

約数の個数: 256

約数和(自身を含む): 65774332800

約数和(自身を除く): 45645722880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 59, 60, 64, 80, 96, 118, 120, 128, 137, 160, 177, 192, 236, 240, 274, 295, 320, 354, 384, 411, 472, 480, 548, 590, 640, 685, 708, 822, 885, 944, 960, 1096, 1180, 1297, 1370, 1416, 1644, 1770, 1888, 1920, 2055, 2192, 2360, 2594, 2740, 2832, 3288, 3540, 3776, 3891, 4110, 4384, 4720, 5188, 5480, 5664, 6485, 6576, 7080, 7552, 7782, 8083, 8220, 8768, 9440, 10376, 10960, 11328, 12970, 13152, 14160, 15564, 16166, 16440, 17536, 18880, 19455, 20752, 21920, 22656, 24249, 25940, 26304, 28320, 31128, 32332, 32880, 37760, 38910, 40415, 41504, 43840, 48498, 51880, 52608, 56640, 62256, 64664, 65760, 76523, 77820, 80830, 83008, 87680, 96996, 103760, 113280, 121245, 124512, 129328, 131520, 153046, 155640, 161660, 166016, 177689, 193992, 207520, 229569, 242490, 249024, 258656, 263040, 306092, 311280, 323320, 355378, 382615, 387984, 415040, 459138, 484980, 498048, 517312, 533067, 612184, 622560, 646640, 710756, 765230, 775968, 830080, 888445, 918276, 969960, 1034624, 1066134, 1147845, 1224368, 1245120, 1293280, 1421512, 1530460, 1551936, 1776890, 1836552, 1939920, 2132268, 2295690, 2448736, 2490240, 2586560, 2665335, 2843024, 3060920, 3103872, 3553780, 3673104, 3879840, 4264536, 4591380, 4897472, 5173120, 5330670, 5686048, 6121840, 7107560, 7346208, 7759680, 8529072, 9182760, 9794944, 10483651, 10661340, 11372096, 12243680, 14215120, 14692416, 15519360, 17058144, 18365520, 20967302, 21322680, 22744192, 24487360, 28430240, 29384832, 31450953, 34116288, 36731040, 41934604, 42645360, 48974720, 52418255, 56860480, 62901906, 68232576, 73462080, 83869208, 85290720, 104836510, 113720960, 125803812, 146924160, 157254765, 167738416, 170581440, 209673020, 251607624, 314509530, 335476832, 341162880, 419346040, 503215248, 629019060, 670953664, 838692080, 1006430496, 1258038120, 1341907328, 1677384160, 2012860992, 2516076240, 3354768320, 4025721984, 5032152480, 6709536640, 10064304960, 20128609920]

約数ペア:

[(1, 20128609920), (2, 10064304960), (3, 6709536640), (4, 5032152480), (5, 4025721984), (6, 3354768320), (8, 2516076240), (10, 2012860992), (12, 1677384160), (15, 1341907328), (16, 1258038120), (20, 1006430496), (24, 838692080), (30, 670953664), (32, 629019060), (40, 503215248), (48, 419346040), (59, 341162880), (60, 335476832), (64, 314509530), (80, 251607624), (96, 209673020), (118, 170581440), (120, 167738416), (128, 157254765), (137, 146924160), (160, 125803812), (177, 113720960), (192, 104836510), (236, 85290720), (240, 83869208), (274, 73462080), (295, 68232576), (320, 62901906), (354, 56860480), (384, 52418255), (411, 48974720), (472, 42645360), (480, 41934604), (548, 36731040), (590, 34116288), (640, 31450953), (685, 29384832), (708, 28430240), (822, 24487360), (885, 22744192), (944, 21322680), (960, 20967302), (1096, 18365520), (1180, 17058144), (1297, 15519360), (1370, 14692416), (1416, 14215120), (1644, 12243680), (1770, 11372096), (1888, 10661340), (1920, 10483651), (2055, 9794944), (2192, 9182760), (2360, 8529072), (2594, 7759680), (2740, 7346208), (2832, 7107560), (3288, 6121840), (3540, 5686048), (3776, 5330670), (3891, 5173120), (4110, 4897472), (4384, 4591380), (4720, 4264536), (5188, 3879840), (5480, 3673104), (5664, 3553780), (6485, 3103872), (6576, 3060920), (7080, 2843024), (7552, 2665335), (7782, 2586560), (8083, 2490240), (8220, 2448736), (8768, 2295690), (9440, 2132268), (10376, 1939920), (10960, 1836552), (11328, 1776890), (12970, 1551936), (13152, 1530460), (14160, 1421512), (15564, 1293280), (16166, 1245120), (16440, 1224368), (17536, 1147845), (18880, 1066134), (19455, 1034624), (20752, 969960), (21920, 918276), (22656, 888445), (24249, 830080), (25940, 775968), (26304, 765230), (28320, 710756), (31128, 646640), (32332, 622560), (32880, 612184), (37760, 533067), (38910, 517312), (40415, 498048), (41504, 484980), (43840, 459138), (48498, 415040), (51880, 387984), (52608, 382615), (56640, 355378), (62256, 323320), (64664, 311280), (65760, 306092), (76523, 263040), (77820, 258656), (80830, 249024), (83008, 242490), (87680, 229569), (96996, 207520), (103760, 193992), (113280, 177689), (121245, 166016), (124512, 161660), (129328, 155640), (131520, 153046)]