31538980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{271}}^1$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 75809664

約数和(自身を除く): 44270684

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 271, 460, 506, 529, 542, 1012, 1058, 1084, 1265, 1355, 2116, 2530, 2645, 2710, 2981, 5060, 5290, 5420, 5819, 5962, 6233, 10580, 11638, 11924, 12466, 14905, 23276, 24932, 29095, 29810, 31165, 58190, 59620, 62330, 68563, 116380, 124660, 137126, 143359, 274252, 286718, 342815, 573436, 685630, 716795, 1371260, 1433590, 1576949, 2867180, 3153898, 6307796, 7884745, 15769490, 31538980]

約数ペア:

[(1, 31538980), (2, 15769490), (4, 7884745), (5, 6307796), (10, 3153898), (11, 2867180), (20, 1576949), (22, 1433590), (23, 1371260), (44, 716795), (46, 685630), (55, 573436), (92, 342815), (110, 286718), (115, 274252), (220, 143359), (230, 137126), (253, 124660), (271, 116380), (460, 68563), (506, 62330), (529, 59620), (542, 58190), (1012, 31165), (1058, 29810), (1084, 29095), (1265, 24932), (1355, 23276), (2116, 14905), (2530, 12466), (2645, 11924), (2710, 11638), (2981, 10580), (5060, 6233), (5290, 5962), (5420, 5819)]