81184660

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{3539}}^1$

素因数の和:3616

約数の個数: 48

約数和(自身を含む): 180794880

約数和(自身を除く): 99610220

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 370, 620, 740, 1147, 2294, 3539, 4588, 5735, 7078, 11470, 14156, 17695, 22940, 35390, 70780, 109709, 130943, 219418, 261886, 438836, 523772, 548545, 654715, 1097090, 1309430, 2194180, 2618860, 4059233, 8118466, 16236932, 20296165, 40592330, 81184660]

約数ペア:

[(1, 81184660), (2, 40592330), (4, 20296165), (5, 16236932), (10, 8118466), (20, 4059233), (31, 2618860), (37, 2194180), (62, 1309430), (74, 1097090), (124, 654715), (148, 548545), (155, 523772), (185, 438836), (310, 261886), (370, 219418), (620, 130943), (740, 109709), (1147, 70780), (2294, 35390), (3539, 22940), (4588, 17695), (5735, 14156), (7078, 11470)]