64720980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{359561}}^1$

素因数の和:359576

約数の個数: 36

約数和(自身を含む): 196320852

約数和(自身を除く): 131599872

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 359561, 719122, 1078683, 1438244, 1797805, 2157366, 3236049, 3595610, 4314732, 5393415, 6472098, 7191220, 10786830, 12944196, 16180245, 21573660, 32360490, 64720980]

約数ペア:

[(1, 64720980), (2, 32360490), (3, 21573660), (4, 16180245), (5, 12944196), (6, 10786830), (9, 7191220), (10, 6472098), (12, 5393415), (15, 4314732), (18, 3595610), (20, 3236049), (30, 2157366), (36, 1797805), (45, 1438244), (60, 1078683), (90, 719122), (180, 359561)]