208348075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{643}}^1\times {\mathrm{997}}^1$

素因数の和:1663

約数の個数: 24

約数和(自身を含む): 278937008

約数和(自身を除く): 70588933

約数列:

[1, 5, 13, 25, 65, 325, 643, 997, 3215, 4985, 8359, 12961, 16075, 24925, 41795, 64805, 208975, 324025, 641071, 3205355, 8333923, 16026775, 41669615, 208348075]

約数ペア:

[(1, 208348075), (5, 41669615), (13, 16026775), (25, 8333923), (65, 3205355), (325, 641071), (643, 324025), (997, 208975), (3215, 64805), (4985, 41795), (8359, 24925), (12961, 16075)]