212938280

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{54881}}^1$

素因数の和:54989

約数の個数: 32

約数和(自身を含む): 484059240

約数和(自身を除く): 271120960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 54881, 109762, 219524, 274405, 439048, 548810, 1097620, 2195240, 5323457, 10646914, 21293828, 26617285, 42587656, 53234570, 106469140, 212938280]

約数ペア:

[(1, 212938280), (2, 106469140), (4, 53234570), (5, 42587656), (8, 26617285), (10, 21293828), (20, 10646914), (40, 5323457), (97, 2195240), (194, 1097620), (388, 548810), (485, 439048), (776, 274405), (970, 219524), (1940, 109762), (3880, 54881)]