394147740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{938447}}^1$

素因数の和:938466

約数の個数: 48

約数和(自身を含む): 1261274112

約数和(自身を除く): 867126372

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 938447, 1876894, 2815341, 3753788, 4692235, 5630682, 6569129, 9384470, 11261364, 13138258, 14076705, 18768940, 19707387, 26276516, 28153410, 32845645, 39414774, 56306820, 65691290, 78829548, 98536935, 131382580, 197073870, 394147740]

約数ペア:

[(1, 394147740), (2, 197073870), (3, 131382580), (4, 98536935), (5, 78829548), (6, 65691290), (7, 56306820), (10, 39414774), (12, 32845645), (14, 28153410), (15, 26276516), (20, 19707387), (21, 18768940), (28, 14076705), (30, 13138258), (35, 11261364), (42, 9384470), (60, 6569129), (70, 5630682), (84, 4692235), (105, 3753788), (140, 2815341), (210, 1876894), (420, 938447)]