90986420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{3299}}^1$

素因数の和:3512

約数の個数: 48

約数和(自身を含む): 219542400

約数和(自身を除く): 128555980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1970, 2758, 3299, 3940, 5516, 6598, 6895, 13196, 13790, 16495, 23093, 27580, 32990, 46186, 65980, 92372, 115465, 230930, 461860, 649903, 1299806, 2599612, 3249515, 4549321, 6499030, 9098642, 12998060, 18197284, 22746605, 45493210, 90986420]

約数ペア:

[(1, 90986420), (2, 45493210), (4, 22746605), (5, 18197284), (7, 12998060), (10, 9098642), (14, 6499030), (20, 4549321), (28, 3249515), (35, 2599612), (70, 1299806), (140, 649903), (197, 461860), (394, 230930), (788, 115465), (985, 92372), (1379, 65980), (1970, 46186), (2758, 32990), (3299, 27580), (3940, 23093), (5516, 16495), (6598, 13790), (6895, 13196)]