15440940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{787}}^1$

素因数の和:911

約数の個数: 72

約数和(自身を含む): 47327280

約数和(自身を除く): 31886340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 787, 981, 1090, 1308, 1574, 1635, 1962, 2180, 2361, 3148, 3270, 3924, 3935, 4722, 4905, 6540, 7083, 7870, 9444, 9810, 11805, 14166, 15740, 19620, 23610, 28332, 35415, 47220, 70830, 85783, 141660, 171566, 257349, 343132, 428915, 514698, 772047, 857830, 1029396, 1286745, 1544094, 1715660, 2573490, 3088188, 3860235, 5146980, 7720470, 15440940]

約数ペア:

[(1, 15440940), (2, 7720470), (3, 5146980), (4, 3860235), (5, 3088188), (6, 2573490), (9, 1715660), (10, 1544094), (12, 1286745), (15, 1029396), (18, 857830), (20, 772047), (30, 514698), (36, 428915), (45, 343132), (60, 257349), (90, 171566), (109, 141660), (180, 85783), (218, 70830), (327, 47220), (436, 35415), (545, 28332), (654, 23610), (787, 19620), (981, 15740), (1090, 14166), (1308, 11805), (1574, 9810), (1635, 9444), (1962, 7870), (2180, 7083), (2361, 6540), (3148, 4905), (3270, 4722), (3924, 3935)]