18754020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2423}}^1$

素因数の和:2481

約数の個数: 72

約数和(自身を含む): 58234176

約数和(自身を除く): 39480156

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, 2423, 2580, 3870, 4846, 7269, 7740, 9692, 12115, 14538, 21807, 24230, 29076, 36345, 43614, 48460, 72690, 87228, 104189, 109035, 145380, 208378, 218070, 312567, 416756, 436140, 520945, 625134, 937701, 1041890, 1250268, 1562835, 1875402, 2083780, 3125670, 3750804, 4688505, 6251340, 9377010, 18754020]

約数ペア:

[(1, 18754020), (2, 9377010), (3, 6251340), (4, 4688505), (5, 3750804), (6, 3125670), (9, 2083780), (10, 1875402), (12, 1562835), (15, 1250268), (18, 1041890), (20, 937701), (30, 625134), (36, 520945), (43, 436140), (45, 416756), (60, 312567), (86, 218070), (90, 208378), (129, 145380), (172, 109035), (180, 104189), (215, 87228), (258, 72690), (387, 48460), (430, 43614), (516, 36345), (645, 29076), (774, 24230), (860, 21807), (1290, 14538), (1548, 12115), (1935, 9692), (2423, 7740), (2580, 7269), (3870, 4846)]