201891220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{325631}}^1$

素因数の和:325671

約数の個数: 24

約数和(自身を含む): 437649408

約数和(自身を除く): 235758188

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 325631, 651262, 1302524, 1628155, 3256310, 6512620, 10094561, 20189122, 40378244, 50472805, 100945610, 201891220]

約数ペア:

[(1, 201891220), (2, 100945610), (4, 50472805), (5, 40378244), (10, 20189122), (20, 10094561), (31, 6512620), (62, 3256310), (124, 1628155), (155, 1302524), (310, 651262), (620, 325631)]