3989425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:273

約数の個数: 24

約数和(自身を含む): 5490720

約数和(自身を除く): 1501295

約数列:

[1, 5, 11, 25, 55, 89, 163, 275, 445, 815, 979, 1793, 2225, 4075, 4895, 8965, 14507, 24475, 44825, 72535, 159577, 362675, 797885, 3989425]

約数ペア:

[(1, 3989425), (5, 797885), (11, 362675), (25, 159577), (55, 72535), (89, 44825), (163, 24475), (275, 14507), (445, 8965), (815, 4895), (979, 4075), (1793, 2225)]