221708080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251941}}^1$

素因数の和:251965

約数の個数: 40

約数和(自身を含む): 562334544

約数和(自身を除く): 340626464

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 251941, 503882, 1007764, 1259705, 2015528, 2519410, 2771351, 4031056, 5038820, 5542702, 10077640, 11085404, 13856755, 20155280, 22170808, 27713510, 44341616, 55427020, 110854040, 221708080]

約数ペア:

[(1, 221708080), (2, 110854040), (4, 55427020), (5, 44341616), (8, 27713510), (10, 22170808), (11, 20155280), (16, 13856755), (20, 11085404), (22, 10077640), (40, 5542702), (44, 5038820), (55, 4031056), (80, 2771351), (88, 2519410), (110, 2015528), (176, 1259705), (220, 1007764), (440, 503882), (880, 251941)]