31019960

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{1229}}^1$

素因数の和:1871

約数の個数: 32

約数和(自身を含む): 69962400

約数和(自身を除く): 38942440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1229, 1262, 2458, 2524, 3155, 4916, 5048, 6145, 6310, 9832, 12290, 12620, 24580, 25240, 49160, 775499, 1550998, 3101996, 3877495, 6203992, 7754990, 15509980, 31019960]

約数ペア:

[(1, 31019960), (2, 15509980), (4, 7754990), (5, 6203992), (8, 3877495), (10, 3101996), (20, 1550998), (40, 775499), (631, 49160), (1229, 25240), (1262, 24580), (2458, 12620), (2524, 12290), (3155, 9832), (4916, 6310), (5048, 6145)]