1218225

素因数分解:

$3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{439}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 2073280

約数和(自身を除く): 855055

約数列:

[1, 3, 5, 15, 25, 37, 75, 111, 185, 439, 555, 925, 1317, 2195, 2775, 6585, 10975, 16243, 32925, 48729, 81215, 243645, 406075, 1218225]

約数ペア:

[(1, 1218225), (3, 406075), (5, 243645), (15, 81215), (25, 48729), (37, 32925), (75, 16243), (111, 10975), (185, 6585), (439, 2775), (555, 2195), (925, 1317)]