28567825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 42622272

約数和(自身を除く): 14054447

約数列:

[1, 5, 11, 13, 25, 55, 61, 65, 131, 143, 275, 305, 325, 655, 671, 715, 793, 1441, 1525, 1703, 3275, 3355, 3575, 3965, 7205, 7991, 8515, 8723, 16775, 18733, 19825, 36025, 39955, 42575, 43615, 87901, 93665, 103883, 199775, 218075, 439505, 468325, 519415, 1142713, 2197525, 2597075, 5713565, 28567825]

約数ペア:

[(1, 28567825), (5, 5713565), (11, 2597075), (13, 2197525), (25, 1142713), (55, 519415), (61, 468325), (65, 439505), (131, 218075), (143, 199775), (275, 103883), (305, 93665), (325, 87901), (655, 43615), (671, 42575), (715, 39955), (793, 36025), (1441, 19825), (1525, 18733), (1703, 16775), (3275, 8723), (3355, 8515), (3575, 7991), (3965, 7205)]