128986020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{79621}}^1$

素因数の和:79642

約数の個数: 60

約数和(自身を含む): 404639004

約数和(自身を除く): 275652984

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 79621, 159242, 238863, 318484, 398105, 477726, 716589, 796210, 955452, 1194315, 1433178, 1592420, 2149767, 2388630, 2866356, 3582945, 4299534, 4777260, 6449301, 7165890, 8599068, 10748835, 12898602, 14331780, 21497670, 25797204, 32246505, 42995340, 64493010, 128986020]

約数ペア:

[(1, 128986020), (2, 64493010), (3, 42995340), (4, 32246505), (5, 25797204), (6, 21497670), (9, 14331780), (10, 12898602), (12, 10748835), (15, 8599068), (18, 7165890), (20, 6449301), (27, 4777260), (30, 4299534), (36, 3582945), (45, 2866356), (54, 2388630), (60, 2149767), (81, 1592420), (90, 1433178), (108, 1194315), (135, 955452), (162, 796210), (180, 716589), (270, 477726), (324, 398105), (405, 318484), (540, 238863), (810, 159242), (1620, 79621)]