30738820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2467}}^1$

素因数の和:2572

約数の個数: 48

約数和(自身を含む): 74632320

約数和(自身を除く): 43893500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2467, 2492, 3115, 4934, 6230, 9868, 12335, 12460, 17269, 24670, 34538, 49340, 69076, 86345, 172690, 219563, 345380, 439126, 878252, 1097815, 1536941, 2195630, 3073882, 4391260, 6147764, 7684705, 15369410, 30738820]

約数ペア:

[(1, 30738820), (2, 15369410), (4, 7684705), (5, 6147764), (7, 4391260), (10, 3073882), (14, 2195630), (20, 1536941), (28, 1097815), (35, 878252), (70, 439126), (89, 345380), (140, 219563), (178, 172690), (356, 86345), (445, 69076), (623, 49340), (890, 34538), (1246, 24670), (1780, 17269), (2467, 12460), (2492, 12335), (3115, 9868), (4934, 6230)]