205911120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{857963}}^1$

素因数の和:857979

約数の個数: 40

約数和(自身を含む): 638325216

約数和(自身を除く): 432414096

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 857963, 1715926, 2573889, 3431852, 4289815, 5147778, 6863704, 8579630, 10295556, 12869445, 13727408, 17159260, 20591112, 25738890, 34318520, 41182224, 51477780, 68637040, 102955560, 205911120]

約数ペア:

[(1, 205911120), (2, 102955560), (3, 68637040), (4, 51477780), (5, 41182224), (6, 34318520), (8, 25738890), (10, 20591112), (12, 17159260), (15, 13727408), (16, 12869445), (20, 10295556), (24, 8579630), (30, 6863704), (40, 5147778), (48, 4289815), (60, 3431852), (80, 2573889), (120, 1715926), (240, 857963)]