7640720

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{641}}^1$

素因数の和:803

約数の個数: 40

約数和(自身を含む): 17911800

約数和(自身を除く): 10271080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 641, 745, 1192, 1282, 1490, 2384, 2564, 2980, 3205, 5128, 5960, 6410, 10256, 11920, 12820, 25640, 51280, 95509, 191018, 382036, 477545, 764072, 955090, 1528144, 1910180, 3820360, 7640720]

約数ペア:

[(1, 7640720), (2, 3820360), (4, 1910180), (5, 1528144), (8, 955090), (10, 764072), (16, 477545), (20, 382036), (40, 191018), (80, 95509), (149, 51280), (298, 25640), (596, 12820), (641, 11920), (745, 10256), (1192, 6410), (1282, 5960), (1490, 5128), (2384, 3205), (2564, 2980)]