1640580020

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1547717}}^1$

素因数の和:1547779

約数の個数: 24

約数和(自身を含む): 3510224424

約数和(自身を除く): 1869644404

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 1547717, 3095434, 6190868, 7738585, 15477170, 30954340, 82029001, 164058002, 328116004, 410145005, 820290010, 1640580020]

約数ペア:

[(1, 1640580020), (2, 820290010), (4, 410145005), (5, 328116004), (10, 164058002), (20, 82029001), (53, 30954340), (106, 15477170), (212, 7738585), (265, 6190868), (530, 3095434), (1060, 1547717)]