18930680

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12791}}^1$

素因数の和:12839

約数の個数: 32

約数和(自身を含む): 43748640

約数和(自身を除く): 24817960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 12791, 25582, 51164, 63955, 102328, 127910, 255820, 473267, 511640, 946534, 1893068, 2366335, 3786136, 4732670, 9465340, 18930680]

約数ペア:

[(1, 18930680), (2, 9465340), (4, 4732670), (5, 3786136), (8, 2366335), (10, 1893068), (20, 946534), (37, 511640), (40, 473267), (74, 255820), (148, 127910), (185, 102328), (296, 63955), (370, 51164), (740, 25582), (1480, 12791)]