19966125

素因数分解:

$3^1\times 5^3\times {\mathrm{37}}^1\times {\mathrm{1439}}^1$

素因数の和:1494

約数の個数: 32

約数和(自身を含む): 34145280

約数和(自身を除く): 14179155

約数列:

[1, 3, 5, 15, 25, 37, 75, 111, 125, 185, 375, 555, 925, 1439, 2775, 4317, 4625, 7195, 13875, 21585, 35975, 53243, 107925, 159729, 179875, 266215, 539625, 798645, 1331075, 3993225, 6655375, 19966125]

約数ペア:

[(1, 19966125), (3, 6655375), (5, 3993225), (15, 1331075), (25, 798645), (37, 539625), (75, 266215), (111, 179875), (125, 159729), (185, 107925), (375, 53243), (555, 35975), (925, 21585), (1439, 13875), (2775, 7195), (4317, 4625)]