290062520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{15331}}^1$

素因数の和:15396

約数の個数: 64

約数和(自身を含む): 728576640

約数和(自身を除く): 438514120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1720, 1892, 2365, 3784, 4730, 9460, 15331, 18920, 30662, 61324, 76655, 122648, 153310, 168641, 306620, 337282, 613240, 659233, 674564, 843205, 1318466, 1349128, 1686410, 2636932, 3296165, 3372820, 5273864, 6592330, 6745640, 7251563, 13184660, 14503126, 26369320, 29006252, 36257815, 58012504, 72515630, 145031260, 290062520]

約数ペア:

[(1, 290062520), (2, 145031260), (4, 72515630), (5, 58012504), (8, 36257815), (10, 29006252), (11, 26369320), (20, 14503126), (22, 13184660), (40, 7251563), (43, 6745640), (44, 6592330), (55, 5273864), (86, 3372820), (88, 3296165), (110, 2636932), (172, 1686410), (215, 1349128), (220, 1318466), (344, 843205), (430, 674564), (440, 659233), (473, 613240), (860, 337282), (946, 306620), (1720, 168641), (1892, 153310), (2365, 122648), (3784, 76655), (4730, 61324), (9460, 30662), (15331, 18920)]