19542875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 27158976

約数和(自身を除く): 7616101

約数列:

[1, 5, 11, 25, 55, 61, 125, 233, 275, 305, 671, 1165, 1375, 1525, 2563, 3355, 5825, 7625, 12815, 14213, 16775, 29125, 64075, 71065, 83875, 156343, 320375, 355325, 781715, 1776625, 3908575, 19542875]

約数ペア:

[(1, 19542875), (5, 3908575), (11, 1776625), (25, 781715), (55, 355325), (61, 320375), (125, 156343), (233, 83875), (275, 71065), (305, 64075), (671, 29125), (1165, 16775), (1375, 14213), (1525, 12815), (2563, 7625), (3355, 5825)]