20575660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:175

約数の個数: 96

約数和(自身を含む): 52254720

約数和(自身を除く): 31679060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 53, 59, 70, 94, 106, 118, 140, 188, 212, 235, 236, 265, 295, 329, 371, 413, 470, 530, 590, 658, 742, 826, 940, 1060, 1180, 1316, 1484, 1645, 1652, 1855, 2065, 2491, 2773, 3127, 3290, 3710, 4130, 4982, 5546, 6254, 6580, 7420, 8260, 9964, 11092, 12455, 12508, 13865, 15635, 17437, 19411, 21889, 24910, 27730, 31270, 34874, 38822, 43778, 49820, 55460, 62540, 69748, 77644, 87185, 87556, 97055, 109445, 146969, 174370, 194110, 218890, 293938, 348740, 388220, 437780, 587876, 734845, 1028783, 1469690, 2057566, 2939380, 4115132, 5143915, 10287830, 20575660]

約数ペア:

[(1, 20575660), (2, 10287830), (4, 5143915), (5, 4115132), (7, 2939380), (10, 2057566), (14, 1469690), (20, 1028783), (28, 734845), (35, 587876), (47, 437780), (53, 388220), (59, 348740), (70, 293938), (94, 218890), (106, 194110), (118, 174370), (140, 146969), (188, 109445), (212, 97055), (235, 87556), (236, 87185), (265, 77644), (295, 69748), (329, 62540), (371, 55460), (413, 49820), (470, 43778), (530, 38822), (590, 34874), (658, 31270), (742, 27730), (826, 24910), (940, 21889), (1060, 19411), (1180, 17437), (1316, 15635), (1484, 13865), (1645, 12508), (1652, 12455), (1855, 11092), (2065, 9964), (2491, 8260), (2773, 7420), (3127, 6580), (3290, 6254), (3710, 5546), (4130, 4982)]