61509890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{15263}}^1$

素因数の和:15314

約数の個数: 32

約数和(自身を含む): 123088896

約数和(自身を除く): 61579006

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 15263, 30526, 76315, 152630, 198419, 396838, 473153, 946306, 992095, 1984190, 2365765, 4731530, 6150989, 12301978, 30754945, 61509890]

約数ペア:

[(1, 61509890), (2, 30754945), (5, 12301978), (10, 6150989), (13, 4731530), (26, 2365765), (31, 1984190), (62, 992095), (65, 946306), (130, 473153), (155, 396838), (310, 198419), (403, 152630), (806, 76315), (2015, 30526), (4030, 15263)]