64393820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1\times {\mathrm{367}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 140464128

約数和(自身を除く): 76070308

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 283, 310, 367, 566, 620, 734, 1132, 1415, 1468, 1835, 2830, 3670, 5660, 7340, 8773, 11377, 17546, 22754, 35092, 43865, 45508, 56885, 87730, 103861, 113770, 175460, 207722, 227540, 415444, 519305, 1038610, 2077220, 3219691, 6439382, 12878764, 16098455, 32196910, 64393820]

約数ペア:

[(1, 64393820), (2, 32196910), (4, 16098455), (5, 12878764), (10, 6439382), (20, 3219691), (31, 2077220), (62, 1038610), (124, 519305), (155, 415444), (283, 227540), (310, 207722), (367, 175460), (566, 113770), (620, 103861), (734, 87730), (1132, 56885), (1415, 45508), (1468, 43865), (1835, 35092), (2830, 22754), (3670, 17546), (5660, 11377), (7340, 8773)]