71128820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{2579}}^1$

素因数の和:2792

約数の個数: 48

約数和(自身を含む): 171642240

約数和(自身を除く): 100513420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1970, 2579, 2758, 3940, 5158, 5516, 6895, 10316, 12895, 13790, 18053, 25790, 27580, 36106, 51580, 72212, 90265, 180530, 361060, 508063, 1016126, 2032252, 2540315, 3556441, 5080630, 7112882, 10161260, 14225764, 17782205, 35564410, 71128820]

約数ペア:

[(1, 71128820), (2, 35564410), (4, 17782205), (5, 14225764), (7, 10161260), (10, 7112882), (14, 5080630), (20, 3556441), (28, 2540315), (35, 2032252), (70, 1016126), (140, 508063), (197, 361060), (394, 180530), (788, 90265), (985, 72212), (1379, 51580), (1970, 36106), (2579, 27580), (2758, 25790), (3940, 18053), (5158, 13790), (5516, 12895), (6895, 10316)]