28745255

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{379}}^1$

素因数の和:599

約数の個数: 32

約数和(自身を含む): 43338240

約数和(自身を除く): 14592985

約数列:

[1, 5, 7, 11, 35, 55, 77, 197, 379, 385, 985, 1379, 1895, 2167, 2653, 4169, 6895, 10835, 13265, 15169, 20845, 29183, 74663, 75845, 145915, 373315, 522641, 821293, 2613205, 4106465, 5749051, 28745255]

約数ペア:

[(1, 28745255), (5, 5749051), (7, 4106465), (11, 2613205), (35, 821293), (55, 522641), (77, 373315), (197, 145915), (379, 75845), (385, 74663), (985, 29183), (1379, 20845), (1895, 15169), (2167, 13265), (2653, 10835), (4169, 6895)]