399648360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{42157}}^1$

素因数の和:42250

約数の個数: 64

約数和(自身を含む): 1214150400

約数和(自身を除く): 814502040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 79, 120, 158, 237, 316, 395, 474, 632, 790, 948, 1185, 1580, 1896, 2370, 3160, 4740, 9480, 42157, 84314, 126471, 168628, 210785, 252942, 337256, 421570, 505884, 632355, 843140, 1011768, 1264710, 1686280, 2529420, 3330403, 5058840, 6660806, 9991209, 13321612, 16652015, 19982418, 26643224, 33304030, 39964836, 49956045, 66608060, 79929672, 99912090, 133216120, 199824180, 399648360]

約数ペア:

[(1, 399648360), (2, 199824180), (3, 133216120), (4, 99912090), (5, 79929672), (6, 66608060), (8, 49956045), (10, 39964836), (12, 33304030), (15, 26643224), (20, 19982418), (24, 16652015), (30, 13321612), (40, 9991209), (60, 6660806), (79, 5058840), (120, 3330403), (158, 2529420), (237, 1686280), (316, 1264710), (395, 1011768), (474, 843140), (632, 632355), (790, 505884), (948, 421570), (1185, 337256), (1580, 252942), (1896, 210785), (2370, 168628), (3160, 126471), (4740, 84314), (9480, 42157)]