65981980

素因数分解:

$2^2\times 5^1\times {\mathrm{617}}^1\times {\mathrm{5347}}^1$

素因数の和:5973

約数の個数: 24

約数和(自身を含む): 138812688

約数和(自身を除く): 72830708

約数列:

[1, 2, 4, 5, 10, 20, 617, 1234, 2468, 3085, 5347, 6170, 10694, 12340, 21388, 26735, 53470, 106940, 3299099, 6598198, 13196396, 16495495, 32990990, 65981980]

約数ペア:

[(1, 65981980), (2, 32990990), (4, 16495495), (5, 13196396), (10, 6598198), (20, 3299099), (617, 106940), (1234, 53470), (2468, 26735), (3085, 21388), (5347, 12340), (6170, 10694)]