7868840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 20476800

約数和(自身を除く): 12607960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 157, 179, 280, 314, 358, 628, 716, 785, 895, 1099, 1253, 1256, 1432, 1570, 1790, 2198, 2506, 3140, 3580, 4396, 5012, 5495, 6265, 6280, 7160, 8792, 10024, 10990, 12530, 21980, 25060, 28103, 43960, 50120, 56206, 112412, 140515, 196721, 224824, 281030, 393442, 562060, 786884, 983605, 1124120, 1573768, 1967210, 3934420, 7868840]

約数ペア:

[(1, 7868840), (2, 3934420), (4, 1967210), (5, 1573768), (7, 1124120), (8, 983605), (10, 786884), (14, 562060), (20, 393442), (28, 281030), (35, 224824), (40, 196721), (56, 140515), (70, 112412), (140, 56206), (157, 50120), (179, 43960), (280, 28103), (314, 25060), (358, 21980), (628, 12530), (716, 10990), (785, 10024), (895, 8792), (1099, 7160), (1253, 6280), (1256, 6265), (1432, 5495), (1570, 5012), (1790, 4396), (2198, 3580), (2506, 3140)]