64549940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1223}}^1$

素因数の和:1281

約数の個数: 96

約数和(自身を含む): 172730880

約数和(自身を除く): 108180940

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 29, 35, 52, 58, 65, 70, 91, 116, 130, 140, 145, 182, 203, 260, 290, 364, 377, 406, 455, 580, 754, 812, 910, 1015, 1223, 1508, 1820, 1885, 2030, 2446, 2639, 3770, 4060, 4892, 5278, 6115, 7540, 8561, 10556, 12230, 13195, 15899, 17122, 24460, 26390, 31798, 34244, 35467, 42805, 52780, 63596, 70934, 79495, 85610, 111293, 141868, 158990, 171220, 177335, 222586, 248269, 317980, 354670, 445172, 461071, 496538, 556465, 709340, 922142, 993076, 1112930, 1241345, 1844284, 2225860, 2305355, 2482690, 3227497, 4610710, 4965380, 6454994, 9221420, 12909988, 16137485, 32274970, 64549940]

約数ペア:

[(1, 64549940), (2, 32274970), (4, 16137485), (5, 12909988), (7, 9221420), (10, 6454994), (13, 4965380), (14, 4610710), (20, 3227497), (26, 2482690), (28, 2305355), (29, 2225860), (35, 1844284), (52, 1241345), (58, 1112930), (65, 993076), (70, 922142), (91, 709340), (116, 556465), (130, 496538), (140, 461071), (145, 445172), (182, 354670), (203, 317980), (260, 248269), (290, 222586), (364, 177335), (377, 171220), (406, 158990), (455, 141868), (580, 111293), (754, 85610), (812, 79495), (910, 70934), (1015, 63596), (1223, 52780), (1508, 42805), (1820, 35467), (1885, 34244), (2030, 31798), (2446, 26390), (2639, 24460), (3770, 17122), (4060, 15899), (4892, 13195), (5278, 12230), (6115, 10556), (7540, 8561)]