28118360

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{7247}}^1$

素因数の和:7355

約数の個数: 32

約数和(自身を含む): 63927360

約数和(自身を除く): 35809000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 7247, 14494, 28988, 36235, 57976, 72470, 144940, 289880, 702959, 1405918, 2811836, 3514795, 5623672, 7029590, 14059180, 28118360]

約数ペア:

[(1, 28118360), (2, 14059180), (4, 7029590), (5, 5623672), (8, 3514795), (10, 2811836), (20, 1405918), (40, 702959), (97, 289880), (194, 144940), (388, 72470), (485, 57976), (776, 36235), (970, 28988), (1940, 14494), (3880, 7247)]