138724020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{17923}}^1$

素因数の和:17981

約数の個数: 72

約数和(自身を含む): 430606176

約数和(自身を除く): 291882156

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, 2580, 3870, 7740, 17923, 35846, 53769, 71692, 89615, 107538, 161307, 179230, 215076, 268845, 322614, 358460, 537690, 645228, 770689, 806535, 1075380, 1541378, 1613070, 2312067, 3082756, 3226140, 3853445, 4624134, 6936201, 7706890, 9248268, 11560335, 13872402, 15413780, 23120670, 27744804, 34681005, 46241340, 69362010, 138724020]

約数ペア:

[(1, 138724020), (2, 69362010), (3, 46241340), (4, 34681005), (5, 27744804), (6, 23120670), (9, 15413780), (10, 13872402), (12, 11560335), (15, 9248268), (18, 7706890), (20, 6936201), (30, 4624134), (36, 3853445), (43, 3226140), (45, 3082756), (60, 2312067), (86, 1613070), (90, 1541378), (129, 1075380), (172, 806535), (180, 770689), (215, 645228), (258, 537690), (387, 358460), (430, 322614), (516, 268845), (645, 215076), (774, 179230), (860, 161307), (1290, 107538), (1548, 89615), (1935, 71692), (2580, 53769), (3870, 35846), (7740, 17923)]