440980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1297}}^1$

素因数の和:1323

約数の個数: 24

約数和(自身を含む): 981288

約数和(自身を除く): 540308

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1297, 2594, 5188, 6485, 12970, 22049, 25940, 44098, 88196, 110245, 220490, 440980]

約数ペア:

[(1, 440980), (2, 220490), (4, 110245), (5, 88196), (10, 44098), (17, 25940), (20, 22049), (34, 12970), (68, 6485), (85, 5188), (170, 2594), (340, 1297)]