639968640

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1$

素因数の和:425

約数の個数: 256

約数和(自身を含む): 2194387200

約数和(自身を除く): 1554418560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 53, 57, 60, 64, 76, 80, 95, 96, 106, 114, 120, 128, 152, 159, 160, 190, 192, 212, 228, 240, 265, 285, 304, 318, 320, 331, 380, 384, 424, 456, 480, 530, 570, 608, 636, 640, 662, 760, 795, 848, 912, 960, 993, 1007, 1060, 1140, 1216, 1272, 1324, 1520, 1590, 1655, 1696, 1824, 1920, 1986, 2014, 2120, 2280, 2432, 2544, 2648, 3021, 3040, 3180, 3310, 3392, 3648, 3972, 4028, 4240, 4560, 4965, 5035, 5088, 5296, 6042, 6080, 6289, 6360, 6620, 6784, 7296, 7944, 8056, 8480, 9120, 9930, 10070, 10176, 10592, 12084, 12160, 12578, 12720, 13240, 15105, 15888, 16112, 16960, 17543, 18240, 18867, 19860, 20140, 20352, 21184, 24168, 25156, 25440, 26480, 30210, 31445, 31776, 32224, 33920, 35086, 36480, 37734, 39720, 40280, 42368, 48336, 50312, 50880, 52629, 52960, 60420, 62890, 63552, 64448, 70172, 75468, 79440, 80560, 87715, 94335, 96672, 100624, 101760, 105258, 105920, 120840, 125780, 127104, 128896, 140344, 150936, 158880, 161120, 175430, 188670, 193344, 201248, 210516, 211840, 241680, 251560, 263145, 280688, 301872, 317760, 322240, 333317, 350860, 377340, 386688, 402496, 421032, 483360, 503120, 526290, 561376, 603744, 635520, 644480, 666634, 701720, 754680, 804992, 842064, 966720, 999951, 1006240, 1052580, 1122752, 1207488, 1333268, 1403440, 1509360, 1666585, 1684128, 1933440, 1999902, 2012480, 2105160, 2245504, 2414976, 2666536, 2806880, 3018720, 3333170, 3368256, 3999804, 4024960, 4210320, 4999755, 5333072, 5613760, 6037440, 6666340, 6736512, 7999608, 8420640, 9999510, 10666144, 11227520, 12074880, 13332680, 15999216, 16841280, 19999020, 21332288, 26665360, 31998432, 33682560, 39998040, 42664576, 53330720, 63996864, 79996080, 106661440, 127993728, 159992160, 213322880, 319984320, 639968640]

約数ペア:

[(1, 639968640), (2, 319984320), (3, 213322880), (4, 159992160), (5, 127993728), (6, 106661440), (8, 79996080), (10, 63996864), (12, 53330720), (15, 42664576), (16, 39998040), (19, 33682560), (20, 31998432), (24, 26665360), (30, 21332288), (32, 19999020), (38, 16841280), (40, 15999216), (48, 13332680), (53, 12074880), (57, 11227520), (60, 10666144), (64, 9999510), (76, 8420640), (80, 7999608), (95, 6736512), (96, 6666340), (106, 6037440), (114, 5613760), (120, 5333072), (128, 4999755), (152, 4210320), (159, 4024960), (160, 3999804), (190, 3368256), (192, 3333170), (212, 3018720), (228, 2806880), (240, 2666536), (265, 2414976), (285, 2245504), (304, 2105160), (318, 2012480), (320, 1999902), (331, 1933440), (380, 1684128), (384, 1666585), (424, 1509360), (456, 1403440), (480, 1333268), (530, 1207488), (570, 1122752), (608, 1052580), (636, 1006240), (640, 999951), (662, 966720), (760, 842064), (795, 804992), (848, 754680), (912, 701720), (960, 666634), (993, 644480), (1007, 635520), (1060, 603744), (1140, 561376), (1216, 526290), (1272, 503120), (1324, 483360), (1520, 421032), (1590, 402496), (1655, 386688), (1696, 377340), (1824, 350860), (1920, 333317), (1986, 322240), (2014, 317760), (2120, 301872), (2280, 280688), (2432, 263145), (2544, 251560), (2648, 241680), (3021, 211840), (3040, 210516), (3180, 201248), (3310, 193344), (3392, 188670), (3648, 175430), (3972, 161120), (4028, 158880), (4240, 150936), (4560, 140344), (4965, 128896), (5035, 127104), (5088, 125780), (5296, 120840), (6042, 105920), (6080, 105258), (6289, 101760), (6360, 100624), (6620, 96672), (6784, 94335), (7296, 87715), (7944, 80560), (8056, 79440), (8480, 75468), (9120, 70172), (9930, 64448), (10070, 63552), (10176, 62890), (10592, 60420), (12084, 52960), (12160, 52629), (12578, 50880), (12720, 50312), (13240, 48336), (15105, 42368), (15888, 40280), (16112, 39720), (16960, 37734), (17543, 36480), (18240, 35086), (18867, 33920), (19860, 32224), (20140, 31776), (20352, 31445), (21184, 30210), (24168, 26480), (25156, 25440)]