663775190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{137999}}^1$

素因数の和:138056

約数の個数: 32

約数和(自身を含む): 1321488000

約数和(自身を除く): 657712810

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4810, 137999, 275998, 689995, 1379990, 1793987, 3587974, 5105963, 8969935, 10211926, 17939870, 25529815, 51059630, 66377519, 132755038, 331887595, 663775190]

約数ペア:

[(1, 663775190), (2, 331887595), (5, 132755038), (10, 66377519), (13, 51059630), (26, 25529815), (37, 17939870), (65, 10211926), (74, 8969935), (130, 5105963), (185, 3587974), (370, 1793987), (481, 1379990), (962, 689995), (2405, 275998), (4810, 137999)]