18265780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{431}}^1$

素因数の和:616

約数の個数: 48

約数和(自身を含む): 41658624

約数和(自身を除く): 23392844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 163, 260, 326, 431, 652, 815, 862, 1630, 1724, 2119, 2155, 3260, 4238, 4310, 5603, 8476, 8620, 10595, 11206, 21190, 22412, 28015, 42380, 56030, 70253, 112060, 140506, 281012, 351265, 702530, 913289, 1405060, 1826578, 3653156, 4566445, 9132890, 18265780]

約数ペア:

[(1, 18265780), (2, 9132890), (4, 4566445), (5, 3653156), (10, 1826578), (13, 1405060), (20, 913289), (26, 702530), (52, 351265), (65, 281012), (130, 140506), (163, 112060), (260, 70253), (326, 56030), (431, 42380), (652, 28015), (815, 22412), (862, 21190), (1630, 11206), (1724, 10595), (2119, 8620), (2155, 8476), (3260, 5603), (4238, 4310)]