15961615

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:319

約数の個数: 24

約数和(自身を含む): 20848320

約数和(自身を除く): 4886705

約数列:

[1, 5, 19, 37, 95, 185, 239, 361, 703, 1195, 1805, 3515, 4541, 8843, 13357, 22705, 44215, 66785, 86279, 168017, 431395, 840085, 3192323, 15961615]

約数ペア:

[(1, 15961615), (5, 3192323), (19, 840085), (37, 431395), (95, 168017), (185, 86279), (239, 66785), (361, 44215), (703, 22705), (1195, 13357), (1805, 8843), (3515, 4541)]