20551570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1061}}^1$

素因数の和:1230

約数の個数: 32

約数和(自身を含む): 40143600

約数和(自身を除く): 19592030

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 1061, 1490, 1937, 2122, 3874, 5305, 9685, 10610, 13793, 19370, 27586, 68965, 137930, 158089, 316178, 790445, 1580890, 2055157, 4110314, 10275785, 20551570]

約数ペア:

[(1, 20551570), (2, 10275785), (5, 4110314), (10, 2055157), (13, 1580890), (26, 790445), (65, 316178), (130, 158089), (149, 137930), (298, 68965), (745, 27586), (1061, 19370), (1490, 13793), (1937, 10610), (2122, 9685), (3874, 5305)]