20009615360

素因数分解:

$2^{15}\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:354

約数の個数: 256

約数和(自身を含む): 55867276800

約数和(自身を除く): 35857661440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 73, 80, 112, 128, 140, 146, 160, 224, 239, 256, 280, 292, 320, 365, 448, 478, 511, 512, 560, 584, 640, 730, 896, 956, 1022, 1024, 1120, 1168, 1195, 1280, 1460, 1673, 1792, 1912, 2044, 2048, 2240, 2336, 2390, 2555, 2560, 2920, 3346, 3584, 3824, 4088, 4096, 4480, 4672, 4780, 5110, 5120, 5840, 6692, 7168, 7648, 8176, 8192, 8365, 8960, 9344, 9560, 10220, 10240, 11680, 13384, 14336, 15296, 16352, 16384, 16730, 17447, 17920, 18688, 19120, 20440, 20480, 23360, 26768, 28672, 30592, 32704, 32768, 33460, 34894, 35840, 37376, 38240, 40880, 40960, 46720, 53536, 57344, 61184, 65408, 66920, 69788, 71680, 74752, 76480, 81760, 81920, 87235, 93440, 107072, 114688, 122129, 122368, 130816, 133840, 139576, 143360, 149504, 152960, 163520, 163840, 174470, 186880, 214144, 229376, 244258, 244736, 261632, 267680, 279152, 286720, 299008, 305920, 327040, 348940, 373760, 428288, 488516, 489472, 523264, 535360, 558304, 573440, 598016, 610645, 611840, 654080, 697880, 747520, 856576, 977032, 978944, 1046528, 1070720, 1116608, 1146880, 1196032, 1221290, 1223680, 1308160, 1395760, 1495040, 1713152, 1954064, 1957888, 2093056, 2141440, 2233216, 2392064, 2442580, 2447360, 2616320, 2791520, 2990080, 3426304, 3908128, 3915776, 4186112, 4282880, 4466432, 4885160, 4894720, 5232640, 5583040, 5980160, 6852608, 7816256, 7831552, 8372224, 8565760, 8932864, 9770320, 9789440, 10465280, 11166080, 11960320, 13705216, 15632512, 16744448, 17131520, 17865728, 19540640, 19578880, 20930560, 22332160, 27410432, 31265024, 34263040, 35731456, 39081280, 39157760, 41861120, 44664320, 54820864, 62530048, 68526080, 71462912, 78162560, 83722240, 89328640, 125060096, 137052160, 142925824, 156325120, 178657280, 250120192, 274104320, 285851648, 312650240, 357314560, 500240384, 571703296, 625300480, 714629120, 1000480768, 1250600960, 1429258240, 2000961536, 2501201920, 2858516480, 4001923072, 5002403840, 10004807680, 20009615360]

約数ペア:

[(1, 20009615360), (2, 10004807680), (4, 5002403840), (5, 4001923072), (7, 2858516480), (8, 2501201920), (10, 2000961536), (14, 1429258240), (16, 1250600960), (20, 1000480768), (28, 714629120), (32, 625300480), (35, 571703296), (40, 500240384), (56, 357314560), (64, 312650240), (70, 285851648), (73, 274104320), (80, 250120192), (112, 178657280), (128, 156325120), (140, 142925824), (146, 137052160), (160, 125060096), (224, 89328640), (239, 83722240), (256, 78162560), (280, 71462912), (292, 68526080), (320, 62530048), (365, 54820864), (448, 44664320), (478, 41861120), (511, 39157760), (512, 39081280), (560, 35731456), (584, 34263040), (640, 31265024), (730, 27410432), (896, 22332160), (956, 20930560), (1022, 19578880), (1024, 19540640), (1120, 17865728), (1168, 17131520), (1195, 16744448), (1280, 15632512), (1460, 13705216), (1673, 11960320), (1792, 11166080), (1912, 10465280), (2044, 9789440), (2048, 9770320), (2240, 8932864), (2336, 8565760), (2390, 8372224), (2555, 7831552), (2560, 7816256), (2920, 6852608), (3346, 5980160), (3584, 5583040), (3824, 5232640), (4088, 4894720), (4096, 4885160), (4480, 4466432), (4672, 4282880), (4780, 4186112), (5110, 3915776), (5120, 3908128), (5840, 3426304), (6692, 2990080), (7168, 2791520), (7648, 2616320), (8176, 2447360), (8192, 2442580), (8365, 2392064), (8960, 2233216), (9344, 2141440), (9560, 2093056), (10220, 1957888), (10240, 1954064), (11680, 1713152), (13384, 1495040), (14336, 1395760), (15296, 1308160), (16352, 1223680), (16384, 1221290), (16730, 1196032), (17447, 1146880), (17920, 1116608), (18688, 1070720), (19120, 1046528), (20440, 978944), (20480, 977032), (23360, 856576), (26768, 747520), (28672, 697880), (30592, 654080), (32704, 611840), (32768, 610645), (33460, 598016), (34894, 573440), (35840, 558304), (37376, 535360), (38240, 523264), (40880, 489472), (40960, 488516), (46720, 428288), (53536, 373760), (57344, 348940), (61184, 327040), (65408, 305920), (66920, 299008), (69788, 286720), (71680, 279152), (74752, 267680), (76480, 261632), (81760, 244736), (81920, 244258), (87235, 229376), (93440, 214144), (107072, 186880), (114688, 174470), (122129, 163840), (122368, 163520), (130816, 152960), (133840, 149504), (139576, 143360)]