30128980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{701}}^1$

素因数の和:1024

約数の個数: 48

約数和(自身を含む): 72648576

約数和(自身を除く): 42519596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 307, 614, 701, 1228, 1402, 1535, 2149, 2804, 3070, 3505, 4298, 4907, 6140, 7010, 8596, 9814, 10745, 14020, 19628, 21490, 24535, 42980, 49070, 98140, 215207, 430414, 860828, 1076035, 1506449, 2152070, 3012898, 4304140, 6025796, 7532245, 15064490, 30128980]

約数ペア:

[(1, 30128980), (2, 15064490), (4, 7532245), (5, 6025796), (7, 4304140), (10, 3012898), (14, 2152070), (20, 1506449), (28, 1076035), (35, 860828), (70, 430414), (140, 215207), (307, 98140), (614, 49070), (701, 42980), (1228, 24535), (1402, 21490), (1535, 19628), (2149, 14020), (2804, 10745), (3070, 9814), (3505, 8596), (4298, 7010), (4907, 6140)]