20162775

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 34997760

約数和(自身を除く): 14834985

約数列:

[1, 3, 5, 15, 25, 41, 75, 79, 83, 123, 205, 237, 249, 395, 415, 615, 1025, 1185, 1245, 1975, 2075, 3075, 3239, 3403, 5925, 6225, 6557, 9717, 10209, 16195, 17015, 19671, 32785, 48585, 51045, 80975, 85075, 98355, 163925, 242925, 255225, 268837, 491775, 806511, 1344185, 4032555, 6720925, 20162775]

約数ペア:

[(1, 20162775), (3, 6720925), (5, 4032555), (15, 1344185), (25, 806511), (41, 491775), (75, 268837), (79, 255225), (83, 242925), (123, 163925), (205, 98355), (237, 85075), (249, 80975), (395, 51045), (415, 48585), (615, 32785), (1025, 19671), (1185, 17015), (1245, 16195), (1975, 10209), (2075, 9717), (3075, 6557), (3239, 6225), (3403, 5925)]