15105040

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4391}}^1$

素因数の和:4447

約数の個数: 40

約数和(自身を含む): 35944128

約数和(自身を除く): 20839088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 4391, 8782, 17564, 21955, 35128, 43910, 70256, 87820, 175640, 188813, 351280, 377626, 755252, 944065, 1510504, 1888130, 3021008, 3776260, 7552520, 15105040]

約数ペア:

[(1, 15105040), (2, 7552520), (4, 3776260), (5, 3021008), (8, 1888130), (10, 1510504), (16, 944065), (20, 755252), (40, 377626), (43, 351280), (80, 188813), (86, 175640), (172, 87820), (215, 70256), (344, 43910), (430, 35128), (688, 21955), (860, 17564), (1720, 8782), (3440, 4391)]