311485780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{59}}^1\times {\mathrm{499}}^1$

素因数の和:613

約数の個数: 72

約数和(自身を含む): 696780000

約数和(自身を除く): 385294220

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 59, 92, 115, 118, 230, 236, 295, 460, 499, 529, 590, 998, 1058, 1180, 1357, 1996, 2116, 2495, 2645, 2714, 4990, 5290, 5428, 6785, 9980, 10580, 11477, 13570, 22954, 27140, 29441, 31211, 45908, 57385, 58882, 62422, 114770, 117764, 124844, 147205, 156055, 229540, 263971, 294410, 312110, 527942, 588820, 624220, 677143, 1055884, 1319855, 1354286, 2639710, 2708572, 3385715, 5279420, 6771430, 13542860, 15574289, 31148578, 62297156, 77871445, 155742890, 311485780]

約数ペア:

[(1, 311485780), (2, 155742890), (4, 77871445), (5, 62297156), (10, 31148578), (20, 15574289), (23, 13542860), (46, 6771430), (59, 5279420), (92, 3385715), (115, 2708572), (118, 2639710), (230, 1354286), (236, 1319855), (295, 1055884), (460, 677143), (499, 624220), (529, 588820), (590, 527942), (998, 312110), (1058, 294410), (1180, 263971), (1357, 229540), (1996, 156055), (2116, 147205), (2495, 124844), (2645, 117764), (2714, 114770), (4990, 62422), (5290, 58882), (5428, 57385), (6785, 45908), (9980, 31211), (10580, 29441), (11477, 27140), (13570, 22954)]