31049720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{71}}^1$

素因数の和:153

約数の個数: 96

約数和(自身を含む): 79017120

約数和(自身を除く): 47967400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 71, 104, 116, 130, 142, 145, 232, 260, 284, 290, 355, 377, 520, 568, 580, 710, 754, 841, 923, 1160, 1420, 1508, 1682, 1846, 1885, 2059, 2840, 3016, 3364, 3692, 3770, 4118, 4205, 4615, 6728, 7384, 7540, 8236, 8410, 9230, 10295, 10933, 15080, 16472, 16820, 18460, 20590, 21866, 26767, 33640, 36920, 41180, 43732, 53534, 54665, 59711, 82360, 87464, 107068, 109330, 119422, 133835, 214136, 218660, 238844, 267670, 298555, 437320, 477688, 535340, 597110, 776243, 1070680, 1194220, 1552486, 2388440, 3104972, 3881215, 6209944, 7762430, 15524860, 31049720]

約数ペア:

[(1, 31049720), (2, 15524860), (4, 7762430), (5, 6209944), (8, 3881215), (10, 3104972), (13, 2388440), (20, 1552486), (26, 1194220), (29, 1070680), (40, 776243), (52, 597110), (58, 535340), (65, 477688), (71, 437320), (104, 298555), (116, 267670), (130, 238844), (142, 218660), (145, 214136), (232, 133835), (260, 119422), (284, 109330), (290, 107068), (355, 87464), (377, 82360), (520, 59711), (568, 54665), (580, 53534), (710, 43732), (754, 41180), (841, 36920), (923, 33640), (1160, 26767), (1420, 21866), (1508, 20590), (1682, 18460), (1846, 16820), (1885, 16472), (2059, 15080), (2840, 10933), (3016, 10295), (3364, 9230), (3692, 8410), (3770, 8236), (4118, 7540), (4205, 7384), (4615, 6728)]