28720600

素因数分解:

$2^3\times 5^2\times {\mathrm{163}}^1\times {\mathrm{881}}^1$

素因数の和:1060

約数の個数: 48

約数和(自身を含む): 67261320

約数和(自身を除く): 38540720

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 163, 200, 326, 652, 815, 881, 1304, 1630, 1762, 3260, 3524, 4075, 4405, 6520, 7048, 8150, 8810, 16300, 17620, 22025, 32600, 35240, 44050, 88100, 143603, 176200, 287206, 574412, 718015, 1148824, 1436030, 2872060, 3590075, 5744120, 7180150, 14360300, 28720600]

約数ペア:

[(1, 28720600), (2, 14360300), (4, 7180150), (5, 5744120), (8, 3590075), (10, 2872060), (20, 1436030), (25, 1148824), (40, 718015), (50, 574412), (100, 287206), (163, 176200), (200, 143603), (326, 88100), (652, 44050), (815, 35240), (881, 32600), (1304, 22025), (1630, 17620), (1762, 16300), (3260, 8810), (3524, 8150), (4075, 7048), (4405, 6520)]