261422160

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1089259}}^1$

素因数の和:1089275

約数の個数: 40

約数和(自身を含む): 810409440

約数和(自身を除く): 548987280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1089259, 2178518, 3267777, 4357036, 5446295, 6535554, 8714072, 10892590, 13071108, 16338885, 17428144, 21785180, 26142216, 32677770, 43570360, 52284432, 65355540, 87140720, 130711080, 261422160]

約数ペア:

[(1, 261422160), (2, 130711080), (3, 87140720), (4, 65355540), (5, 52284432), (6, 43570360), (8, 32677770), (10, 26142216), (12, 21785180), (15, 17428144), (16, 16338885), (20, 13071108), (24, 10892590), (30, 8714072), (40, 6535554), (48, 5446295), (60, 4357036), (80, 3267777), (120, 2178518), (240, 1089259)]