257003680

素因数分解:

$2^5\times 5^1\times {\mathrm{1606273}}^1$

素因数の和:1606288

約数の個数: 24

約数和(自身を含む): 607171572

約数和(自身を除く): 350167892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1606273, 3212546, 6425092, 8031365, 12850184, 16062730, 25700368, 32125460, 51400736, 64250920, 128501840, 257003680]

約数ペア:

[(1, 257003680), (2, 128501840), (4, 64250920), (5, 51400736), (8, 32125460), (10, 25700368), (16, 16062730), (20, 12850184), (32, 8031365), (40, 6425092), (80, 3212546), (160, 1606273)]