80663540

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{55249}}^1$

素因数の和:55331

約数の個数: 24

約数和(自身を含む): 171717000

約数和(自身を除く): 91053460

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 55249, 110498, 220996, 276245, 552490, 1104980, 4033177, 8066354, 16132708, 20165885, 40331770, 80663540]

約数ペア:

[(1, 80663540), (2, 40331770), (4, 20165885), (5, 16132708), (10, 8066354), (20, 4033177), (73, 1104980), (146, 552490), (292, 276245), (365, 220996), (730, 110498), (1460, 55249)]