19739680

素因数分解:

$2^5\times 5^1\times {\mathrm{123373}}^1$

素因数の和:123388

約数の個数: 24

約数和(自身を含む): 46635372

約数和(自身を除く): 26895692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 123373, 246746, 493492, 616865, 986984, 1233730, 1973968, 2467460, 3947936, 4934920, 9869840, 19739680]

約数ペア:

[(1, 19739680), (2, 9869840), (4, 4934920), (5, 3947936), (8, 2467460), (10, 1973968), (16, 1233730), (20, 986984), (32, 616865), (40, 493492), (80, 246746), (160, 123373)]