87868890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13751}}^1$

素因数の和:13835

約数の個数: 48

約数和(自身を含む): 231693696

約数和(自身を除く): 143824806

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 71, 90, 142, 213, 355, 426, 639, 710, 1065, 1278, 2130, 3195, 6390, 13751, 27502, 41253, 68755, 82506, 123759, 137510, 206265, 247518, 412530, 618795, 976321, 1237590, 1952642, 2928963, 4881605, 5857926, 8786889, 9763210, 14644815, 17573778, 29289630, 43934445, 87868890]

約数ペア:

[(1, 87868890), (2, 43934445), (3, 29289630), (5, 17573778), (6, 14644815), (9, 9763210), (10, 8786889), (15, 5857926), (18, 4881605), (30, 2928963), (45, 1952642), (71, 1237590), (90, 976321), (142, 618795), (213, 412530), (355, 247518), (426, 206265), (639, 137510), (710, 123759), (1065, 82506), (1278, 68755), (2130, 41253), (3195, 27502), (6390, 13751)]