2018156540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{19469}}^1$

素因数の和:19622

約数の個数: 48

約数和(自身を含む): 4356918720

約数和(自身を除く): 2338762180

約数列:

[1, 2, 4, 5, 10, 20, 71, 73, 142, 146, 284, 292, 355, 365, 710, 730, 1420, 1460, 5183, 10366, 19469, 20732, 25915, 38938, 51830, 77876, 97345, 103660, 194690, 389380, 1382299, 1421237, 2764598, 2842474, 5529196, 5684948, 6911495, 7106185, 13822990, 14212370, 27645980, 28424740, 100907827, 201815654, 403631308, 504539135, 1009078270, 2018156540]

約数ペア:

[(1, 2018156540), (2, 1009078270), (4, 504539135), (5, 403631308), (10, 201815654), (20, 100907827), (71, 28424740), (73, 27645980), (142, 14212370), (146, 13822990), (284, 7106185), (292, 6911495), (355, 5684948), (365, 5529196), (710, 2842474), (730, 2764598), (1420, 1421237), (1460, 1382299), (5183, 389380), (10366, 194690), (19469, 103660), (20732, 97345), (25915, 77876), (38938, 51830)]