81723680

素因数分解:

$2^5\times 5^1\times {\mathrm{510773}}^1$

素因数の和:510788

約数の個数: 24

約数和(自身を含む): 193072572

約数和(自身を除く): 111348892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 510773, 1021546, 2043092, 2553865, 4086184, 5107730, 8172368, 10215460, 16344736, 20430920, 40861840, 81723680]

約数ペア:

[(1, 81723680), (2, 40861840), (4, 20430920), (5, 16344736), (8, 10215460), (10, 8172368), (16, 5107730), (20, 4086184), (32, 2553865), (40, 2043092), (80, 1021546), (160, 510773)]