28032940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{787}}^1$

素因数の和:946

約数の個数: 48

約数和(自身を含む): 63941472

約数和(自身を除く): 35908532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 137, 260, 274, 548, 685, 787, 1370, 1574, 1781, 2740, 3148, 3562, 3935, 7124, 7870, 8905, 10231, 15740, 17810, 20462, 35620, 40924, 51155, 102310, 107819, 204620, 215638, 431276, 539095, 1078190, 1401647, 2156380, 2803294, 5606588, 7008235, 14016470, 28032940]

約数ペア:

[(1, 28032940), (2, 14016470), (4, 7008235), (5, 5606588), (10, 2803294), (13, 2156380), (20, 1401647), (26, 1078190), (52, 539095), (65, 431276), (130, 215638), (137, 204620), (260, 107819), (274, 102310), (548, 51155), (685, 40924), (787, 35620), (1370, 20462), (1574, 17810), (1781, 15740), (2740, 10231), (3148, 8905), (3562, 7870), (3935, 7124)]