31021640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^3\times {\mathrm{353}}^1$

素因数の和:403

約数の個数: 64

約数和(自身を含む): 75826800

約数和(自身を除く): 44805160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 353, 520, 676, 706, 845, 1352, 1412, 1690, 1765, 2197, 2824, 3380, 3530, 4394, 4589, 6760, 7060, 8788, 9178, 10985, 14120, 17576, 18356, 21970, 22945, 36712, 43940, 45890, 59657, 87880, 91780, 119314, 183560, 238628, 298285, 477256, 596570, 775541, 1193140, 1551082, 2386280, 3102164, 3877705, 6204328, 7755410, 15510820, 31021640]

約数ペア:

[(1, 31021640), (2, 15510820), (4, 7755410), (5, 6204328), (8, 3877705), (10, 3102164), (13, 2386280), (20, 1551082), (26, 1193140), (40, 775541), (52, 596570), (65, 477256), (104, 298285), (130, 238628), (169, 183560), (260, 119314), (338, 91780), (353, 87880), (520, 59657), (676, 45890), (706, 43940), (845, 36712), (1352, 22945), (1412, 21970), (1690, 18356), (1765, 17576), (2197, 14120), (2824, 10985), (3380, 9178), (3530, 8788), (4394, 7060), (4589, 6760)]