1628207375

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{727}}^1$

素因数の和:825

約数の個数: 64

約数和(自身を含む): 2289530880

約数和(自身を除く): 661323505

約数列:

[1, 5, 19, 23, 25, 41, 95, 115, 125, 205, 437, 475, 575, 727, 779, 943, 1025, 2185, 2375, 2875, 3635, 3895, 4715, 5125, 10925, 13813, 16721, 17917, 18175, 19475, 23575, 29807, 54625, 69065, 83605, 89585, 90875, 97375, 117875, 149035, 317699, 345325, 418025, 447925, 566333, 685561, 745175, 1588495, 1726625, 2090125, 2239625, 2831665, 3427805, 3725875, 7942475, 13025659, 14158325, 17139025, 39712375, 65128295, 70791625, 85695125, 325641475, 1628207375]

約数ペア:

[(1, 1628207375), (5, 325641475), (19, 85695125), (23, 70791625), (25, 65128295), (41, 39712375), (95, 17139025), (115, 14158325), (125, 13025659), (205, 7942475), (437, 3725875), (475, 3427805), (575, 2831665), (727, 2239625), (779, 2090125), (943, 1726625), (1025, 1588495), (2185, 745175), (2375, 685561), (2875, 566333), (3635, 447925), (3895, 418025), (4715, 345325), (5125, 317699), (10925, 149035), (13813, 117875), (16721, 97375), (17917, 90875), (18175, 89585), (19475, 83605), (23575, 69065), (29807, 54625)]