18661140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2411}}^1$

素因数の和:2469

約数の個数: 72

約数和(自身を含む): 57945888

約数和(自身を除く): 39284748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2411, 2580, 3870, 4822, 7233, 7740, 9644, 12055, 14466, 21699, 24110, 28932, 36165, 43398, 48220, 72330, 86796, 103673, 108495, 144660, 207346, 216990, 311019, 414692, 433980, 518365, 622038, 933057, 1036730, 1244076, 1555095, 1866114, 2073460, 3110190, 3732228, 4665285, 6220380, 9330570, 18661140]

約数ペア:

[(1, 18661140), (2, 9330570), (3, 6220380), (4, 4665285), (5, 3732228), (6, 3110190), (9, 2073460), (10, 1866114), (12, 1555095), (15, 1244076), (18, 1036730), (20, 933057), (30, 622038), (36, 518365), (43, 433980), (45, 414692), (60, 311019), (86, 216990), (90, 207346), (129, 144660), (172, 108495), (180, 103673), (215, 86796), (258, 72330), (387, 48220), (430, 43398), (516, 36165), (645, 28932), (774, 24110), (860, 21699), (1290, 14466), (1548, 12055), (1935, 9644), (2411, 7740), (2580, 7233), (3870, 4822)]