1861531984

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{113287}}^1$

素因数の和:113387

約数の個数: 40

約数和(自身を含む): 3933359360

約数和(自身を除く): 2071827376

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 79, 104, 158, 208, 316, 632, 1027, 1264, 2054, 4108, 8216, 16432, 113287, 226574, 453148, 906296, 1472731, 1812592, 2945462, 5890924, 8949673, 11781848, 17899346, 23563696, 35798692, 71597384, 116345749, 143194768, 232691498, 465382996, 930765992, 1861531984]

約数ペア:

[(1, 1861531984), (2, 930765992), (4, 465382996), (8, 232691498), (13, 143194768), (16, 116345749), (26, 71597384), (52, 35798692), (79, 23563696), (104, 17899346), (158, 11781848), (208, 8949673), (316, 5890924), (632, 2945462), (1027, 1812592), (1264, 1472731), (2054, 906296), (4108, 453148), (8216, 226574), (16432, 113287)]