19360520

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1123}}^1$

素因数の和:1565

約数の個数: 32

約数和(自身を含む): 43701120

約数和(自身を除く): 24340600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1123, 1724, 2155, 2246, 3448, 4310, 4492, 5615, 8620, 8984, 11230, 17240, 22460, 44920, 484013, 968026, 1936052, 2420065, 3872104, 4840130, 9680260, 19360520]

約数ペア:

[(1, 19360520), (2, 9680260), (4, 4840130), (5, 3872104), (8, 2420065), (10, 1936052), (20, 968026), (40, 484013), (431, 44920), (862, 22460), (1123, 17240), (1724, 11230), (2155, 8984), (2246, 8620), (3448, 5615), (4310, 4492)]