551450020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{31729}}^1$

素因数の和:31828

約数の個数: 48

約数和(自身を含む): 1279353600

約数和(自身を除く): 727903580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1580, 1738, 3476, 4345, 8690, 17380, 31729, 63458, 126916, 158645, 317290, 349019, 634580, 698038, 1396076, 1745095, 2506591, 3490190, 5013182, 6980380, 10026364, 12532955, 25065910, 27572501, 50131820, 55145002, 110290004, 137862505, 275725010, 551450020]

約数ペア:

[(1, 551450020), (2, 275725010), (4, 137862505), (5, 110290004), (10, 55145002), (11, 50131820), (20, 27572501), (22, 25065910), (44, 12532955), (55, 10026364), (79, 6980380), (110, 5013182), (158, 3490190), (220, 2506591), (316, 1745095), (395, 1396076), (790, 698038), (869, 634580), (1580, 349019), (1738, 317290), (3476, 158645), (4345, 126916), (8690, 63458), (17380, 31729)]