30606520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{389}}^1$

素因数の和:688

約数の個数: 64

約数和(自身を含む): 79185600

約数和(自身を除く): 48579080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281, 389, 562, 778, 1124, 1405, 1556, 1945, 1967, 2248, 2723, 2810, 3112, 3890, 3934, 5446, 5620, 7780, 7868, 9835, 10892, 11240, 13615, 15560, 15736, 19670, 21784, 27230, 39340, 54460, 78680, 108920, 109309, 218618, 437236, 546545, 765163, 874472, 1093090, 1530326, 2186180, 3060652, 3825815, 4372360, 6121304, 7651630, 15303260, 30606520]

約数ペア:

[(1, 30606520), (2, 15303260), (4, 7651630), (5, 6121304), (7, 4372360), (8, 3825815), (10, 3060652), (14, 2186180), (20, 1530326), (28, 1093090), (35, 874472), (40, 765163), (56, 546545), (70, 437236), (140, 218618), (280, 109309), (281, 108920), (389, 78680), (562, 54460), (778, 39340), (1124, 27230), (1405, 21784), (1556, 19670), (1945, 15736), (1967, 15560), (2248, 13615), (2723, 11240), (2810, 10892), (3112, 9835), (3890, 7868), (3934, 7780), (5446, 5620)]