201380440

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{11681}}^1$

素因数の和:12123

約数の個数: 32

約数和(自身を含む): 454196160

約数和(自身を除く): 252815720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 3448, 4310, 8620, 11681, 17240, 23362, 46724, 58405, 93448, 116810, 233620, 467240, 5034511, 10069022, 20138044, 25172555, 40276088, 50345110, 100690220, 201380440]

約数ペア:

[(1, 201380440), (2, 100690220), (4, 50345110), (5, 40276088), (8, 25172555), (10, 20138044), (20, 10069022), (40, 5034511), (431, 467240), (862, 233620), (1724, 116810), (2155, 93448), (3448, 58405), (4310, 46724), (8620, 23362), (11681, 17240)]