15885940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{487}}^1$

素因数の和:736

約数の個数: 48

約数和(自身を含む): 38368512

約数和(自身を除く): 22482572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 233, 466, 487, 932, 974, 1165, 1631, 1948, 2330, 2435, 3262, 3409, 4660, 4870, 6524, 6818, 8155, 9740, 13636, 16310, 17045, 32620, 34090, 68180, 113471, 226942, 453884, 567355, 794297, 1134710, 1588594, 2269420, 3177188, 3971485, 7942970, 15885940]

約数ペア:

[(1, 15885940), (2, 7942970), (4, 3971485), (5, 3177188), (7, 2269420), (10, 1588594), (14, 1134710), (20, 794297), (28, 567355), (35, 453884), (70, 226942), (140, 113471), (233, 68180), (466, 34090), (487, 32620), (932, 17045), (974, 16310), (1165, 13636), (1631, 9740), (1948, 8155), (2330, 6818), (2435, 6524), (3262, 4870), (3409, 4660)]