2197489720

素因数分解:

$2^3\times 5^1\times {\mathrm{54937243}}^1$

素因数の和:54937254

約数の個数: 16

約数和(自身を含む): 4944351960

約数和(自身を除く): 2746862240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 54937243, 109874486, 219748972, 274686215, 439497944, 549372430, 1098744860, 2197489720]

約数ペア:

[(1, 2197489720), (2, 1098744860), (4, 549372430), (5, 439497944), (8, 274686215), (10, 219748972), (20, 109874486), (40, 54937243)]