840125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1$

素因数の和:86

約数の個数: 32

約数和(自身を含む): 1257984

約数和(自身を除く): 417859

約数列:

[1, 5, 11, 13, 25, 47, 55, 65, 125, 143, 235, 275, 325, 517, 611, 715, 1175, 1375, 1625, 2585, 3055, 3575, 5875, 6721, 12925, 15275, 17875, 33605, 64625, 76375, 168025, 840125]

約数ペア:

[(1, 840125), (5, 168025), (11, 76375), (13, 64625), (25, 33605), (47, 17875), (55, 15275), (65, 12925), (125, 6721), (143, 5875), (235, 3575), (275, 3055), (325, 2585), (517, 1625), (611, 1375), (715, 1175)]