636904580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{719}}^1\times {\mathrm{3407}}^1$

素因数の和:4148

約数の個数: 48

約数和(自身を含む): 1442810880

約数和(自身を除く): 805906300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 719, 1438, 2876, 3407, 3595, 6814, 7190, 9347, 13628, 14380, 17035, 18694, 34070, 37388, 44291, 46735, 68140, 88582, 93470, 177164, 186940, 221455, 442910, 885820, 2449633, 4899266, 9798532, 12248165, 24496330, 31845229, 48992660, 63690458, 127380916, 159226145, 318452290, 636904580]

約数ペア:

[(1, 636904580), (2, 318452290), (4, 159226145), (5, 127380916), (10, 63690458), (13, 48992660), (20, 31845229), (26, 24496330), (52, 12248165), (65, 9798532), (130, 4899266), (260, 2449633), (719, 885820), (1438, 442910), (2876, 221455), (3407, 186940), (3595, 177164), (6814, 93470), (7190, 88582), (9347, 68140), (13628, 46735), (14380, 44291), (17035, 37388), (18694, 34070)]