222981140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{1987}}^1$

素因数の和:2208

約数の個数: 48

約数和(自身を含む): 486280704

約数和(自身を除く): 263299564

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 181, 310, 362, 620, 724, 905, 1810, 1987, 3620, 3974, 5611, 7948, 9935, 11222, 19870, 22444, 28055, 39740, 56110, 61597, 112220, 123194, 246388, 307985, 359647, 615970, 719294, 1231940, 1438588, 1798235, 3596470, 7192940, 11149057, 22298114, 44596228, 55745285, 111490570, 222981140]

約数ペア:

[(1, 222981140), (2, 111490570), (4, 55745285), (5, 44596228), (10, 22298114), (20, 11149057), (31, 7192940), (62, 3596470), (124, 1798235), (155, 1438588), (181, 1231940), (310, 719294), (362, 615970), (620, 359647), (724, 307985), (905, 246388), (1810, 123194), (1987, 112220), (3620, 61597), (3974, 56110), (5611, 39740), (7948, 28055), (9935, 22444), (11222, 19870)]