18036080

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1721}}^1$

素因数の和:1865

約数の個数: 40

約数和(自身を含む): 42278544

約数和(自身を除く): 24242464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 1721, 2096, 2620, 3442, 5240, 6884, 8605, 10480, 13768, 17210, 27536, 34420, 68840, 137680, 225451, 450902, 901804, 1127255, 1803608, 2254510, 3607216, 4509020, 9018040, 18036080]

約数ペア:

[(1, 18036080), (2, 9018040), (4, 4509020), (5, 3607216), (8, 2254510), (10, 1803608), (16, 1127255), (20, 901804), (40, 450902), (80, 225451), (131, 137680), (262, 68840), (524, 34420), (655, 27536), (1048, 17210), (1310, 13768), (1721, 10480), (2096, 8605), (2620, 6884), (3442, 5240)]