30554980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{379}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 67032000

約数和(自身を除く): 36477020

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 139, 145, 278, 290, 379, 556, 580, 695, 758, 1390, 1516, 1895, 2780, 3790, 4031, 7580, 8062, 10991, 16124, 20155, 21982, 40310, 43964, 52681, 54955, 80620, 105362, 109910, 210724, 219820, 263405, 526810, 1053620, 1527749, 3055498, 6110996, 7638745, 15277490, 30554980]

約数ペア:

[(1, 30554980), (2, 15277490), (4, 7638745), (5, 6110996), (10, 3055498), (20, 1527749), (29, 1053620), (58, 526810), (116, 263405), (139, 219820), (145, 210724), (278, 109910), (290, 105362), (379, 80620), (556, 54955), (580, 52681), (695, 43964), (758, 40310), (1390, 21982), (1516, 20155), (1895, 16124), (2780, 10991), (3790, 8062), (4031, 7580)]