1991750

素因数分解:

$2^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:305

約数の個数: 32

約数和(自身を含む): 3863808

約数和(自身を除く): 1872058

約数列:

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

約数ペア:

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