49739980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{31481}}^1$

素因数の和:31569

約数の個数: 24

約数和(自身を含む): 105779520

約数和(自身を除く): 56039540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 31481, 62962, 125924, 157405, 314810, 629620, 2486999, 4973998, 9947996, 12434995, 24869990, 49739980]

約数ペア:

[(1, 49739980), (2, 24869990), (4, 12434995), (5, 9947996), (10, 4973998), (20, 2486999), (79, 629620), (158, 314810), (316, 157405), (395, 125924), (790, 62962), (1580, 31481)]