64917840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20807}}^1$

素因数の和:20836

約数の個数: 80

約数和(自身を含む): 216736128

約数和(自身を除く): 151818288

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 20807, 41614, 62421, 83228, 104035, 124842, 166456, 208070, 249684, 270491, 312105, 332912, 416140, 499368, 540982, 624210, 811473, 832280, 998736, 1081964, 1248420, 1352455, 1622946, 1664560, 2163928, 2496840, 2704910, 3245892, 4057365, 4327856, 4993680, 5409820, 6491784, 8114730, 10819640, 12983568, 16229460, 21639280, 32458920, 64917840]

約数ペア:

[(1, 64917840), (2, 32458920), (3, 21639280), (4, 16229460), (5, 12983568), (6, 10819640), (8, 8114730), (10, 6491784), (12, 5409820), (13, 4993680), (15, 4327856), (16, 4057365), (20, 3245892), (24, 2704910), (26, 2496840), (30, 2163928), (39, 1664560), (40, 1622946), (48, 1352455), (52, 1248420), (60, 1081964), (65, 998736), (78, 832280), (80, 811473), (104, 624210), (120, 540982), (130, 499368), (156, 416140), (195, 332912), (208, 312105), (240, 270491), (260, 249684), (312, 208070), (390, 166456), (520, 124842), (624, 104035), (780, 83228), (1040, 62421), (1560, 41614), (3120, 20807)]