205702920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{571397}}^1$

素因数の和:571414

約数の個数: 48

約数和(自身を含む): 668535660

約数和(自身を除く): 462832740

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 571397, 1142794, 1714191, 2285588, 2856985, 3428382, 4571176, 5142573, 5713970, 6856764, 8570955, 10285146, 11427940, 13713528, 17141910, 20570292, 22855880, 25712865, 34283820, 41140584, 51425730, 68567640, 102851460, 205702920]

約数ペア:

[(1, 205702920), (2, 102851460), (3, 68567640), (4, 51425730), (5, 41140584), (6, 34283820), (8, 25712865), (9, 22855880), (10, 20570292), (12, 17141910), (15, 13713528), (18, 11427940), (20, 10285146), (24, 8570955), (30, 6856764), (36, 5713970), (40, 5142573), (45, 4571176), (60, 3428382), (72, 2856985), (90, 2285588), (120, 1714191), (180, 1142794), (360, 571397)]