74505980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^2\times {\mathrm{739}}^1$

素因数の和:890

約数の個数: 36

約数和(自身を含む): 158912040

約数和(自身を除く): 84406060

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 739, 1420, 1478, 2956, 3695, 5041, 7390, 10082, 14780, 20164, 25205, 50410, 52469, 100820, 104938, 209876, 262345, 524690, 1049380, 3725299, 7450598, 14901196, 18626495, 37252990, 74505980]

約数ペア:

[(1, 74505980), (2, 37252990), (4, 18626495), (5, 14901196), (10, 7450598), (20, 3725299), (71, 1049380), (142, 524690), (284, 262345), (355, 209876), (710, 104938), (739, 100820), (1420, 52469), (1478, 50410), (2956, 25205), (3695, 20164), (5041, 14780), (7390, 10082)]