217871350

素因数分解:

$2^1\times 5^2\times {\mathrm{991}}^1\times {\mathrm{4397}}^1$

素因数の和:5400

約数の個数: 24

約数和(自身を含む): 405741888

約数和(自身を除く): 187870538

約数列:

[1, 2, 5, 10, 25, 50, 991, 1982, 4397, 4955, 8794, 9910, 21985, 24775, 43970, 49550, 109925, 219850, 4357427, 8714854, 21787135, 43574270, 108935675, 217871350]

約数ペア:

[(1, 217871350), (2, 108935675), (5, 43574270), (10, 21787135), (25, 8714854), (50, 4357427), (991, 219850), (1982, 109925), (4397, 49550), (4955, 43970), (8794, 24775), (9910, 21985)]