28711100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{607}}^1$

素因数の和:675

約数の個数: 72

約数和(自身を含む): 69662208

約数和(自身を除く): 40951108

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 110, 172, 215, 220, 275, 430, 473, 550, 607, 860, 946, 1075, 1100, 1214, 1892, 2150, 2365, 2428, 3035, 4300, 4730, 6070, 6677, 9460, 11825, 12140, 13354, 15175, 23650, 26101, 26708, 30350, 33385, 47300, 52202, 60700, 66770, 104404, 130505, 133540, 166925, 261010, 287111, 333850, 522020, 574222, 652525, 667700, 1148444, 1305050, 1435555, 2610100, 2871110, 5742220, 7177775, 14355550, 28711100]

約数ペア:

[(1, 28711100), (2, 14355550), (4, 7177775), (5, 5742220), (10, 2871110), (11, 2610100), (20, 1435555), (22, 1305050), (25, 1148444), (43, 667700), (44, 652525), (50, 574222), (55, 522020), (86, 333850), (100, 287111), (110, 261010), (172, 166925), (215, 133540), (220, 130505), (275, 104404), (430, 66770), (473, 60700), (550, 52202), (607, 47300), (860, 33385), (946, 30350), (1075, 26708), (1100, 26101), (1214, 23650), (1892, 15175), (2150, 13354), (2365, 12140), (2428, 11825), (3035, 9460), (4300, 6677), (4730, 6070)]