18365680

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1327}}^1$

素因数の和:1513

約数の個数: 40

約数和(自身を含む): 42979392

約数和(自身を除く): 24613712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1327, 1384, 1730, 2654, 2768, 3460, 5308, 6635, 6920, 10616, 13270, 13840, 21232, 26540, 53080, 106160, 229571, 459142, 918284, 1147855, 1836568, 2295710, 3673136, 4591420, 9182840, 18365680]

約数ペア:

[(1, 18365680), (2, 9182840), (4, 4591420), (5, 3673136), (8, 2295710), (10, 1836568), (16, 1147855), (20, 918284), (40, 459142), (80, 229571), (173, 106160), (346, 53080), (692, 26540), (865, 21232), (1327, 13840), (1384, 13270), (1730, 10616), (2654, 6920), (2768, 6635), (3460, 5308)]