18160025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{787}}^1$

素因数の和:881

約数の個数: 24

約数和(自身を含む): 24623424

約数和(自身を除く): 6463399

約数列:

[1, 5, 13, 25, 65, 71, 325, 355, 787, 923, 1775, 3935, 4615, 10231, 19675, 23075, 51155, 55877, 255775, 279385, 726401, 1396925, 3632005, 18160025]

約数ペア:

[(1, 18160025), (5, 3632005), (13, 1396925), (25, 726401), (65, 279385), (71, 255775), (325, 55877), (355, 51155), (787, 23075), (923, 19675), (1775, 10231), (3935, 4615)]