40208840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{881}}^1$

素因数の和:1062

約数の個数: 64

約数和(自身を含む): 104146560

約数和(自身を除く): 63937720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 163, 280, 326, 652, 815, 881, 1141, 1304, 1630, 1762, 2282, 3260, 3524, 4405, 4564, 5705, 6167, 6520, 7048, 8810, 9128, 11410, 12334, 17620, 22820, 24668, 30835, 35240, 45640, 49336, 61670, 123340, 143603, 246680, 287206, 574412, 718015, 1005221, 1148824, 1436030, 2010442, 2872060, 4020884, 5026105, 5744120, 8041768, 10052210, 20104420, 40208840]

約数ペア:

[(1, 40208840), (2, 20104420), (4, 10052210), (5, 8041768), (7, 5744120), (8, 5026105), (10, 4020884), (14, 2872060), (20, 2010442), (28, 1436030), (35, 1148824), (40, 1005221), (56, 718015), (70, 574412), (140, 287206), (163, 246680), (280, 143603), (326, 123340), (652, 61670), (815, 49336), (881, 45640), (1141, 35240), (1304, 30835), (1630, 24668), (1762, 22820), (2282, 17620), (3260, 12334), (3524, 11410), (4405, 9128), (4564, 8810), (5705, 7048), (6167, 6520)]