72420740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{1303}}^1$

素因数の和:1716

約数の個数: 48

約数和(自身を含む): 174381312

約数和(自身を除く): 101960572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 397, 794, 1303, 1588, 1985, 2606, 2779, 3970, 5212, 5558, 6515, 7940, 9121, 11116, 13030, 13895, 18242, 26060, 27790, 36484, 45605, 55580, 91210, 182420, 517291, 1034582, 2069164, 2586455, 3621037, 5172910, 7242074, 10345820, 14484148, 18105185, 36210370, 72420740]

約数ペア:

[(1, 72420740), (2, 36210370), (4, 18105185), (5, 14484148), (7, 10345820), (10, 7242074), (14, 5172910), (20, 3621037), (28, 2586455), (35, 2069164), (70, 1034582), (140, 517291), (397, 182420), (794, 91210), (1303, 55580), (1588, 45605), (1985, 36484), (2606, 27790), (2779, 26060), (3970, 18242), (5212, 13895), (5558, 13030), (6515, 11116), (7940, 9121)]