68991520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{809}}^1$

素因数の和:878

約数の個数: 96

約数和(自身を含む): 180033840

約数和(自身を除く): 111042320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 41, 52, 65, 80, 82, 104, 130, 160, 164, 205, 208, 260, 328, 410, 416, 520, 533, 656, 809, 820, 1040, 1066, 1312, 1618, 1640, 2080, 2132, 2665, 3236, 3280, 4045, 4264, 5330, 6472, 6560, 8090, 8528, 10517, 10660, 12944, 16180, 17056, 21034, 21320, 25888, 32360, 33169, 42068, 42640, 52585, 64720, 66338, 84136, 85280, 105170, 129440, 132676, 165845, 168272, 210340, 265352, 331690, 336544, 420680, 431197, 530704, 663380, 841360, 862394, 1061408, 1326760, 1682720, 1724788, 2155985, 2653520, 3449576, 4311970, 5307040, 6899152, 8623940, 13798304, 17247880, 34495760, 68991520]

約数ペア:

[(1, 68991520), (2, 34495760), (4, 17247880), (5, 13798304), (8, 8623940), (10, 6899152), (13, 5307040), (16, 4311970), (20, 3449576), (26, 2653520), (32, 2155985), (40, 1724788), (41, 1682720), (52, 1326760), (65, 1061408), (80, 862394), (82, 841360), (104, 663380), (130, 530704), (160, 431197), (164, 420680), (205, 336544), (208, 331690), (260, 265352), (328, 210340), (410, 168272), (416, 165845), (520, 132676), (533, 129440), (656, 105170), (809, 85280), (820, 84136), (1040, 66338), (1066, 64720), (1312, 52585), (1618, 42640), (1640, 42068), (2080, 33169), (2132, 32360), (2665, 25888), (3236, 21320), (3280, 21034), (4045, 17056), (4264, 16180), (5330, 12944), (6472, 10660), (6560, 10517), (8090, 8528)]