15639728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4423}}^1$

素因数の和:4461

約数の個数: 40

約数和(自身を含む): 34560288

約数和(自身を除く): 18920560

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 4423, 8846, 17692, 35384, 57499, 70768, 75191, 114998, 150382, 229996, 300764, 459992, 601528, 919984, 977483, 1203056, 1954966, 3909932, 7819864, 15639728]

約数ペア:

[(1, 15639728), (2, 7819864), (4, 3909932), (8, 1954966), (13, 1203056), (16, 977483), (17, 919984), (26, 601528), (34, 459992), (52, 300764), (68, 229996), (104, 150382), (136, 114998), (208, 75191), (221, 70768), (272, 57499), (442, 35384), (884, 17692), (1768, 8846), (3536, 4423)]