381486760

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{36263}}^1$

素因数の和:36537

約数の個数: 32

約数和(自身を含む): 861632640

約数和(自身を除く): 480145880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 10520, 36263, 72526, 145052, 181315, 290104, 362630, 725260, 1450520, 9537169, 19074338, 38148676, 47685845, 76297352, 95371690, 190743380, 381486760]

約数ペア:

[(1, 381486760), (2, 190743380), (4, 95371690), (5, 76297352), (8, 47685845), (10, 38148676), (20, 19074338), (40, 9537169), (263, 1450520), (526, 725260), (1052, 362630), (1315, 290104), (2104, 181315), (2630, 145052), (5260, 72526), (10520, 36263)]