9958750

素因数分解:

$2^1\times 5^4\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:310

約数の個数: 40

約数和(自身を含む): 19343808

約数和(自身を除く): 9385058

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 125, 155, 250, 257, 310, 514, 625, 775, 1250, 1285, 1550, 2570, 3875, 6425, 7750, 7967, 12850, 15934, 19375, 32125, 38750, 39835, 64250, 79670, 160625, 199175, 321250, 398350, 995875, 1991750, 4979375, 9958750]

約数ペア:

[(1, 9958750), (2, 4979375), (5, 1991750), (10, 995875), (25, 398350), (31, 321250), (50, 199175), (62, 160625), (125, 79670), (155, 64250), (250, 39835), (257, 38750), (310, 32125), (514, 19375), (625, 15934), (775, 12850), (1250, 7967), (1285, 7750), (1550, 6425), (2570, 3875)]