201163880

素因数分解:

$2^3\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{2531}}^1$

素因数の和:4529

約数の個数: 32

約数和(自身を含む): 453025440

約数和(自身を除く): 251861560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1987, 2531, 3974, 5062, 7948, 9935, 10124, 12655, 15896, 19870, 20248, 25310, 39740, 50620, 79480, 101240, 5029097, 10058194, 20116388, 25145485, 40232776, 50290970, 100581940, 201163880]

約数ペア:

[(1, 201163880), (2, 100581940), (4, 50290970), (5, 40232776), (8, 25145485), (10, 20116388), (20, 10058194), (40, 5029097), (1987, 101240), (2531, 79480), (3974, 50620), (5062, 39740), (7948, 25310), (9935, 20248), (10124, 19870), (12655, 15896)]