51616825

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{643}}^1$

素因数の和:698

約数の個数: 36

約数和(自身を含む): 73068240

約数和(自身を除く): 21451415

約数列:

[1, 5, 13, 19, 25, 65, 95, 169, 247, 325, 475, 643, 845, 1235, 3211, 3215, 4225, 6175, 8359, 12217, 16055, 16075, 41795, 61085, 80275, 108667, 158821, 208975, 305425, 543335, 794105, 2064673, 2716675, 3970525, 10323365, 51616825]

約数ペア:

[(1, 51616825), (5, 10323365), (13, 3970525), (19, 2716675), (25, 2064673), (65, 794105), (95, 543335), (169, 305425), (247, 208975), (325, 158821), (475, 108667), (643, 80275), (845, 61085), (1235, 41795), (3211, 16075), (3215, 16055), (4225, 12217), (6175, 8359)]