28005510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71809}}^1$

素因数の和:71832

約数の個数: 32

約数和(自身を含む): 72384480

約数和(自身を除く): 44378970

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 71809, 143618, 215427, 359045, 430854, 718090, 933517, 1077135, 1867034, 2154270, 2800551, 4667585, 5601102, 9335170, 14002755, 28005510]

約数ペア:

[(1, 28005510), (2, 14002755), (3, 9335170), (5, 5601102), (6, 4667585), (10, 2800551), (13, 2154270), (15, 1867034), (26, 1077135), (30, 933517), (39, 718090), (65, 430854), (78, 359045), (130, 215427), (195, 143618), (390, 71809)]