15510820

素因数分解:

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

素因数の和:401

約数の個数: 48

約数和(自身を含む): 35385840

約数和(自身を除く): 19875020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 353, 676, 706, 845, 1412, 1690, 1765, 2197, 3380, 3530, 4394, 4589, 7060, 8788, 9178, 10985, 18356, 21970, 22945, 43940, 45890, 59657, 91780, 119314, 238628, 298285, 596570, 775541, 1193140, 1551082, 3102164, 3877705, 7755410, 15510820]

約数ペア:

[(1, 15510820), (2, 7755410), (4, 3877705), (5, 3102164), (10, 1551082), (13, 1193140), (20, 775541), (26, 596570), (52, 298285), (65, 238628), (130, 119314), (169, 91780), (260, 59657), (338, 45890), (353, 43940), (676, 22945), (706, 21970), (845, 18356), (1412, 10985), (1690, 9178), (1765, 8788), (2197, 7060), (3380, 4589), (3530, 4394)]