31618912

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{263}}^1$

素因数の和:320

約数の個数: 72

約数和(自身を含む): 71484336

約数和(自身を除く): 39865424

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 208, 221, 263, 272, 289, 416, 442, 526, 544, 578, 884, 1052, 1156, 1768, 2104, 2312, 3419, 3536, 3757, 4208, 4471, 4624, 6838, 7072, 7514, 8416, 8942, 9248, 13676, 15028, 17884, 27352, 30056, 35768, 54704, 58123, 60112, 71536, 76007, 109408, 116246, 120224, 143072, 152014, 232492, 304028, 464984, 608056, 929968, 988091, 1216112, 1859936, 1976182, 2432224, 3952364, 7904728, 15809456, 31618912]

約数ペア:

[(1, 31618912), (2, 15809456), (4, 7904728), (8, 3952364), (13, 2432224), (16, 1976182), (17, 1859936), (26, 1216112), (32, 988091), (34, 929968), (52, 608056), (68, 464984), (104, 304028), (136, 232492), (208, 152014), (221, 143072), (263, 120224), (272, 116246), (289, 109408), (416, 76007), (442, 71536), (526, 60112), (544, 58123), (578, 54704), (884, 35768), (1052, 30056), (1156, 27352), (1768, 17884), (2104, 15028), (2312, 13676), (3419, 9248), (3536, 8942), (3757, 8416), (4208, 7514), (4471, 7072), (4624, 6838)]