78818480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{75787}}^1$

素因数の和:75813

約数の個数: 40

約数和(自身を含む): 197351952

約数和(自身を除く): 118533472

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 75787, 151574, 303148, 378935, 606296, 757870, 985231, 1212592, 1515740, 1970462, 3031480, 3940924, 4926155, 6062960, 7881848, 9852310, 15763696, 19704620, 39409240, 78818480]

約数ペア:

[(1, 78818480), (2, 39409240), (4, 19704620), (5, 15763696), (8, 9852310), (10, 7881848), (13, 6062960), (16, 4926155), (20, 3940924), (26, 3031480), (40, 1970462), (52, 1515740), (65, 1212592), (80, 985231), (104, 757870), (130, 606296), (208, 378935), (260, 303148), (520, 151574), (1040, 75787)]