16222840

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{941}}^1$

素因数の和:1383

約数の個数: 32

約数和(自身を含む): 36624960

約数和(自身を除く): 20402120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 941, 1724, 1882, 2155, 3448, 3764, 4310, 4705, 7528, 8620, 9410, 17240, 18820, 37640, 405571, 811142, 1622284, 2027855, 3244568, 4055710, 8111420, 16222840]

約数ペア:

[(1, 16222840), (2, 8111420), (4, 4055710), (5, 3244568), (8, 2027855), (10, 1622284), (20, 811142), (40, 405571), (431, 37640), (862, 18820), (941, 17240), (1724, 9410), (1882, 8620), (2155, 7528), (3448, 4705), (3764, 4310)]