2278780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{397}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 5616576

約数和(自身を除く): 3337796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 397, 410, 574, 794, 820, 1148, 1435, 1588, 1985, 2779, 2870, 3970, 5558, 5740, 7940, 11116, 13895, 16277, 27790, 32554, 55580, 65108, 81385, 113939, 162770, 227878, 325540, 455756, 569695, 1139390, 2278780]

約数ペア:

[(1, 2278780), (2, 1139390), (4, 569695), (5, 455756), (7, 325540), (10, 227878), (14, 162770), (20, 113939), (28, 81385), (35, 65108), (41, 55580), (70, 32554), (82, 27790), (140, 16277), (164, 13895), (205, 11116), (287, 7940), (397, 5740), (410, 5558), (574, 3970), (794, 2870), (820, 2779), (1148, 1985), (1435, 1588)]