67216360

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:418

約数の個数: 64

約数和(自身を含む): 155520000

約数和(自身を除く): 88303640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 89, 158, 178, 239, 316, 356, 395, 445, 478, 632, 712, 790, 890, 956, 1195, 1580, 1780, 1912, 2390, 3160, 3560, 4780, 7031, 9560, 14062, 18881, 21271, 28124, 35155, 37762, 42542, 56248, 70310, 75524, 85084, 94405, 106355, 140620, 151048, 170168, 188810, 212710, 281240, 377620, 425420, 755240, 850840, 1680409, 3360818, 6721636, 8402045, 13443272, 16804090, 33608180, 67216360]

約数ペア:

[(1, 67216360), (2, 33608180), (4, 16804090), (5, 13443272), (8, 8402045), (10, 6721636), (20, 3360818), (40, 1680409), (79, 850840), (89, 755240), (158, 425420), (178, 377620), (239, 281240), (316, 212710), (356, 188810), (395, 170168), (445, 151048), (478, 140620), (632, 106355), (712, 94405), (790, 85084), (890, 75524), (956, 70310), (1195, 56248), (1580, 42542), (1780, 37762), (1912, 35155), (2390, 28124), (3160, 21271), (3560, 18881), (4780, 14062), (7031, 9560)]