261531120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1089713}}^1$

素因数の和:1089729

約数の個数: 40

約数和(自身を含む): 810747216

約数和(自身を除く): 549216096

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1089713, 2179426, 3269139, 4358852, 5448565, 6538278, 8717704, 10897130, 13076556, 16345695, 17435408, 21794260, 26153112, 32691390, 43588520, 52306224, 65382780, 87177040, 130765560, 261531120]

約数ペア:

[(1, 261531120), (2, 130765560), (3, 87177040), (4, 65382780), (5, 52306224), (6, 43588520), (8, 32691390), (10, 26153112), (12, 21794260), (15, 17435408), (16, 16345695), (20, 13076556), (24, 10897130), (30, 8717704), (40, 6538278), (48, 5448565), (60, 4358852), (80, 3269139), (120, 2179426), (240, 1089713)]