257573960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{2939}}^1$

素因数の和:3270

約数の個数: 64

約数和(自身を含む): 664675200

約数和(自身を除く): 407101240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 313, 626, 1252, 1565, 2191, 2504, 2939, 3130, 4382, 5878, 6260, 8764, 10955, 11756, 12520, 14695, 17528, 20573, 21910, 23512, 29390, 41146, 43820, 58780, 82292, 87640, 102865, 117560, 164584, 205730, 411460, 822920, 919907, 1839814, 3679628, 4599535, 6439349, 7359256, 9199070, 12878698, 18398140, 25757396, 32196745, 36796280, 51514792, 64393490, 128786980, 257573960]

約数ペア:

[(1, 257573960), (2, 128786980), (4, 64393490), (5, 51514792), (7, 36796280), (8, 32196745), (10, 25757396), (14, 18398140), (20, 12878698), (28, 9199070), (35, 7359256), (40, 6439349), (56, 4599535), (70, 3679628), (140, 1839814), (280, 919907), (313, 822920), (626, 411460), (1252, 205730), (1565, 164584), (2191, 117560), (2504, 102865), (2939, 87640), (3130, 82292), (4382, 58780), (5878, 43820), (6260, 41146), (8764, 29390), (10955, 23512), (11756, 21910), (12520, 20573), (14695, 17528)]