20198765944

素因数分解:

$2^3\times 7^1\times {\mathrm{2281}}^1\times {\mathrm{158129}}^1$

素因数の和:160423

約数の個数: 32

約数和(自身を含む): 43302319200

約数和(自身を除く): 23103553256

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 2281, 4562, 9124, 15967, 18248, 31934, 63868, 127736, 158129, 316258, 632516, 1106903, 1265032, 2213806, 4427612, 8855224, 360692249, 721384498, 1442768996, 2524845743, 2885537992, 5049691486, 10099382972, 20198765944]

約数ペア:

[(1, 20198765944), (2, 10099382972), (4, 5049691486), (7, 2885537992), (8, 2524845743), (14, 1442768996), (28, 721384498), (56, 360692249), (2281, 8855224), (4562, 4427612), (9124, 2213806), (15967, 1265032), (18248, 1106903), (31934, 632516), (63868, 316258), (127736, 158129)]