28193780

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{9461}}^1$

素因数の和:9619

約数の個数: 24

約数和(自身を含む): 59610600

約数和(自身を除く): 31416820

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 9461, 18922, 37844, 47305, 94610, 189220, 1409689, 2819378, 5638756, 7048445, 14096890, 28193780]

約数ペア:

[(1, 28193780), (2, 14096890), (4, 7048445), (5, 5638756), (10, 2819378), (20, 1409689), (149, 189220), (298, 94610), (596, 47305), (745, 37844), (1490, 18922), (2980, 9461)]