393304460

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1\times {\mathrm{1489}}^1$

素因数の和:1826

約数の個数: 48

約数和(自身を含む): 847082880

約数和(自身を除く): 453778420

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 281, 470, 562, 940, 1124, 1405, 1489, 2810, 2978, 5620, 5956, 7445, 13207, 14890, 26414, 29780, 52828, 66035, 69983, 132070, 139966, 264140, 279932, 349915, 418409, 699830, 836818, 1399660, 1673636, 2092045, 4184090, 8368180, 19665223, 39330446, 78660892, 98326115, 196652230, 393304460]

約数ペア:

[(1, 393304460), (2, 196652230), (4, 98326115), (5, 78660892), (10, 39330446), (20, 19665223), (47, 8368180), (94, 4184090), (188, 2092045), (235, 1673636), (281, 1399660), (470, 836818), (562, 699830), (940, 418409), (1124, 349915), (1405, 279932), (1489, 264140), (2810, 139966), (2978, 132070), (5620, 69983), (5956, 66035), (7445, 52828), (13207, 29780), (14890, 26414)]