311293780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{14923}}^1$

素因数の和:15088

約数の個数: 48

約数和(自身を含む): 752169600

約数和(自身を除く): 440875820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 1043, 1490, 2086, 2980, 4172, 5215, 10430, 14923, 20860, 29846, 59692, 74615, 104461, 149230, 208922, 298460, 417844, 522305, 1044610, 2089220, 2223527, 4447054, 8894108, 11117635, 15564689, 22235270, 31129378, 44470540, 62258756, 77823445, 155646890, 311293780]

約数ペア:

[(1, 311293780), (2, 155646890), (4, 77823445), (5, 62258756), (7, 44470540), (10, 31129378), (14, 22235270), (20, 15564689), (28, 11117635), (35, 8894108), (70, 4447054), (140, 2223527), (149, 2089220), (298, 1044610), (596, 522305), (745, 417844), (1043, 298460), (1490, 208922), (2086, 149230), (2980, 104461), (4172, 74615), (5215, 59692), (10430, 29846), (14923, 20860)]