870829900

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{142759}}^1$

素因数の和:142834

約数の個数: 36

約数和(自身を含む): 1920693040

約数和(自身を除く): 1049863140

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 1220, 1525, 3050, 6100, 142759, 285518, 571036, 713795, 1427590, 2855180, 3568975, 7137950, 8708299, 14275900, 17416598, 34833196, 43541495, 87082990, 174165980, 217707475, 435414950, 870829900]

約数ペア:

[(1, 870829900), (2, 435414950), (4, 217707475), (5, 174165980), (10, 87082990), (20, 43541495), (25, 34833196), (50, 17416598), (61, 14275900), (100, 8708299), (122, 7137950), (244, 3568975), (305, 2855180), (610, 1427590), (1220, 713795), (1525, 571036), (3050, 285518), (6100, 142759)]