65509820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{673}}^1$

素因数の和:870

約数の個数: 48

約数和(自身を含む): 143125248

約数和(自身を除く): 77615428

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 157, 310, 314, 620, 628, 673, 785, 1346, 1570, 2692, 3140, 3365, 4867, 6730, 9734, 13460, 19468, 20863, 24335, 41726, 48670, 83452, 97340, 104315, 105661, 208630, 211322, 417260, 422644, 528305, 1056610, 2113220, 3275491, 6550982, 13101964, 16377455, 32754910, 65509820]

約数ペア:

[(1, 65509820), (2, 32754910), (4, 16377455), (5, 13101964), (10, 6550982), (20, 3275491), (31, 2113220), (62, 1056610), (124, 528305), (155, 422644), (157, 417260), (310, 211322), (314, 208630), (620, 105661), (628, 104315), (673, 97340), (785, 83452), (1346, 48670), (1570, 41726), (2692, 24335), (3140, 20863), (3365, 19468), (4867, 13460), (6730, 9734)]