28879960

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10169}}^1$

素因数の和:10251

約数の個数: 32

約数和(自身を含む): 65901600

約数和(自身を除く): 37021640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 10169, 20338, 40676, 50845, 81352, 101690, 203380, 406760, 721999, 1443998, 2887996, 3609995, 5775992, 7219990, 14439980, 28879960]

約数ペア:

[(1, 28879960), (2, 14439980), (4, 7219990), (5, 5775992), (8, 3609995), (10, 2887996), (20, 1443998), (40, 721999), (71, 406760), (142, 203380), (284, 101690), (355, 81352), (568, 50845), (710, 40676), (1420, 20338), (2840, 10169)]