128786980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{2939}}^1$

素因数の和:3268

約数の個数: 48

約数和(自身を含む): 310181760

約数和(自身を除く): 181394780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 313, 626, 1252, 1565, 2191, 2939, 3130, 4382, 5878, 6260, 8764, 10955, 11756, 14695, 20573, 21910, 29390, 41146, 43820, 58780, 82292, 102865, 205730, 411460, 919907, 1839814, 3679628, 4599535, 6439349, 9199070, 12878698, 18398140, 25757396, 32196745, 64393490, 128786980]

約数ペア:

[(1, 128786980), (2, 64393490), (4, 32196745), (5, 25757396), (7, 18398140), (10, 12878698), (14, 9199070), (20, 6439349), (28, 4599535), (35, 3679628), (70, 1839814), (140, 919907), (313, 411460), (626, 205730), (1252, 102865), (1565, 82292), (2191, 58780), (2939, 43820), (3130, 41146), (4382, 29390), (5878, 21910), (6260, 20573), (8764, 14695), (10955, 11756)]