1640672020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6310277}}^1$

素因数の和:6310299

約数の個数: 24

約数和(自身を含む): 3710443464

約数和(自身を除く): 2069771444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 6310277, 12620554, 25241108, 31551385, 63102770, 82033601, 126205540, 164067202, 328134404, 410168005, 820336010, 1640672020]

約数ペア:

[(1, 1640672020), (2, 820336010), (4, 410168005), (5, 328134404), (10, 164067202), (13, 126205540), (20, 82033601), (26, 63102770), (52, 31551385), (65, 25241108), (130, 12620554), (260, 6310277)]