64821040

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1$

素因数の和:470

約数の個数: 80

約数和(自身を含む): 157757760

約数和(自身を除く): 92936720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 61, 74, 80, 122, 148, 185, 244, 296, 305, 359, 370, 488, 592, 610, 718, 740, 976, 1220, 1436, 1480, 1795, 2257, 2440, 2872, 2960, 3590, 4514, 4880, 5744, 7180, 9028, 11285, 13283, 14360, 18056, 21899, 22570, 26566, 28720, 36112, 43798, 45140, 53132, 66415, 87596, 90280, 106264, 109495, 132830, 175192, 180560, 212528, 218990, 265660, 350384, 437980, 531320, 810263, 875960, 1062640, 1620526, 1751920, 3241052, 4051315, 6482104, 8102630, 12964208, 16205260, 32410520, 64821040]

約数ペア:

[(1, 64821040), (2, 32410520), (4, 16205260), (5, 12964208), (8, 8102630), (10, 6482104), (16, 4051315), (20, 3241052), (37, 1751920), (40, 1620526), (61, 1062640), (74, 875960), (80, 810263), (122, 531320), (148, 437980), (185, 350384), (244, 265660), (296, 218990), (305, 212528), (359, 180560), (370, 175192), (488, 132830), (592, 109495), (610, 106264), (718, 90280), (740, 87596), (976, 66415), (1220, 53132), (1436, 45140), (1480, 43798), (1795, 36112), (2257, 28720), (2440, 26566), (2872, 22570), (2960, 21899), (3590, 18056), (4514, 14360), (4880, 13283), (5744, 11285), (7180, 9028)]