64197925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 91333440

約数和(自身を除く): 27135515

約数列:

[1, 5, 11, 25, 43, 55, 61, 89, 215, 275, 305, 445, 473, 671, 979, 1075, 1525, 2225, 2365, 2623, 3355, 3827, 4895, 5429, 11825, 13115, 16775, 19135, 24475, 27145, 28853, 42097, 59719, 65575, 95675, 135725, 144265, 210485, 233447, 298595, 721325, 1052425, 1167235, 1492975, 2567917, 5836175, 12839585, 64197925]

約数ペア:

[(1, 64197925), (5, 12839585), (11, 5836175), (25, 2567917), (43, 1492975), (55, 1167235), (61, 1052425), (89, 721325), (215, 298595), (275, 233447), (305, 210485), (445, 144265), (473, 135725), (671, 95675), (979, 65575), (1075, 59719), (1525, 42097), (2225, 28853), (2365, 27145), (2623, 24475), (3355, 19135), (3827, 16775), (4895, 13115), (5429, 11825)]