128246820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{164419}}^1$

素因数の和:164444

約数の個数: 48

約数和(自身を含む): 386715840

約数和(自身を除く): 258469020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 164419, 328838, 493257, 657676, 822095, 986514, 1644190, 1973028, 2137447, 2466285, 3288380, 4274894, 4932570, 6412341, 8549788, 9865140, 10687235, 12824682, 21374470, 25649364, 32061705, 42748940, 64123410, 128246820]

約数ペア:

[(1, 128246820), (2, 64123410), (3, 42748940), (4, 32061705), (5, 25649364), (6, 21374470), (10, 12824682), (12, 10687235), (13, 9865140), (15, 8549788), (20, 6412341), (26, 4932570), (30, 4274894), (39, 3288380), (52, 2466285), (60, 2137447), (65, 1973028), (78, 1644190), (130, 986514), (156, 822095), (195, 657676), (260, 493257), (390, 328838), (780, 164419)]