66490020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{709}}^1$

素因数の和:1245

約数の個数: 72

約数和(自身を含む): 202358520

約数和(自身を除く): 135868500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 521, 709, 1042, 1418, 1563, 2084, 2127, 2605, 2836, 3126, 3545, 4254, 4689, 5210, 6252, 6381, 7090, 7815, 8508, 9378, 10420, 10635, 12762, 14180, 15630, 18756, 21270, 23445, 25524, 31260, 31905, 42540, 46890, 63810, 93780, 127620, 369389, 738778, 1108167, 1477556, 1846945, 2216334, 3324501, 3693890, 4432668, 5540835, 6649002, 7387780, 11081670, 13298004, 16622505, 22163340, 33245010, 66490020]

約数ペア:

[(1, 66490020), (2, 33245010), (3, 22163340), (4, 16622505), (5, 13298004), (6, 11081670), (9, 7387780), (10, 6649002), (12, 5540835), (15, 4432668), (18, 3693890), (20, 3324501), (30, 2216334), (36, 1846945), (45, 1477556), (60, 1108167), (90, 738778), (180, 369389), (521, 127620), (709, 93780), (1042, 63810), (1418, 46890), (1563, 42540), (2084, 31905), (2127, 31260), (2605, 25524), (2836, 23445), (3126, 21270), (3545, 18756), (4254, 15630), (4689, 14180), (5210, 12762), (6252, 10635), (6381, 10420), (7090, 9378), (7815, 8508)]