19575725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 28331520

約数和(自身を除く): 8755795

約数列:

[1, 5, 13, 25, 29, 31, 65, 67, 145, 155, 325, 335, 377, 403, 725, 775, 871, 899, 1675, 1885, 1943, 2015, 2077, 4355, 4495, 9425, 9715, 10075, 10385, 11687, 21775, 22475, 25259, 27001, 48575, 51925, 58435, 60233, 126295, 135005, 292175, 301165, 631475, 675025, 783029, 1505825, 3915145, 19575725]

約数ペア:

[(1, 19575725), (5, 3915145), (13, 1505825), (25, 783029), (29, 675025), (31, 631475), (65, 301165), (67, 292175), (145, 135005), (155, 126295), (325, 60233), (335, 58435), (377, 51925), (403, 48575), (725, 27001), (775, 25259), (871, 22475), (899, 21775), (1675, 11687), (1885, 10385), (1943, 10075), (2015, 9715), (2077, 9425), (4355, 4495)]