12990225

素因数分解:

$3^1\times 5^2\times {\mathrm{379}}^1\times {\mathrm{457}}^1$

素因数の和:849

約数の個数: 24

約数和(自身を含む): 21580960

約数和(自身を除く): 8590735

約数列:

[1, 3, 5, 15, 25, 75, 379, 457, 1137, 1371, 1895, 2285, 5685, 6855, 9475, 11425, 28425, 34275, 173203, 519609, 866015, 2598045, 4330075, 12990225]

約数ペア:

[(1, 12990225), (3, 4330075), (5, 2598045), (15, 866015), (25, 519609), (75, 173203), (379, 34275), (457, 28425), (1137, 11425), (1371, 9475), (1895, 6855), (2285, 5685)]