381006860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{2879}}^1$

素因数の和:3410

約数の個数: 48

約数和(自身を含む): 863654400

約数和(自身を除く): 482647540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 509, 1018, 2036, 2545, 2879, 5090, 5758, 6617, 10180, 11516, 13234, 14395, 26468, 28790, 33085, 37427, 57580, 66170, 74854, 132340, 149708, 187135, 374270, 748540, 1465411, 2930822, 5861644, 7327055, 14654110, 19050343, 29308220, 38100686, 76201372, 95251715, 190503430, 381006860]

約数ペア:

[(1, 381006860), (2, 190503430), (4, 95251715), (5, 76201372), (10, 38100686), (13, 29308220), (20, 19050343), (26, 14654110), (52, 7327055), (65, 5861644), (130, 2930822), (260, 1465411), (509, 748540), (1018, 374270), (2036, 187135), (2545, 149708), (2879, 132340), (5090, 74854), (5758, 66170), (6617, 57580), (10180, 37427), (11516, 33085), (13234, 28790), (14395, 26468)]