2002940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 4590432

約数和(自身を除く): 2587492

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 137, 170, 172, 215, 274, 340, 430, 548, 685, 731, 860, 1370, 1462, 2329, 2740, 2924, 3655, 4658, 5891, 7310, 9316, 11645, 11782, 14620, 23290, 23564, 29455, 46580, 58910, 100147, 117820, 200294, 400588, 500735, 1001470, 2002940]

約数ペア:

[(1, 2002940), (2, 1001470), (4, 500735), (5, 400588), (10, 200294), (17, 117820), (20, 100147), (34, 58910), (43, 46580), (68, 29455), (85, 23564), (86, 23290), (137, 14620), (170, 11782), (172, 11645), (215, 9316), (274, 7310), (340, 5891), (430, 4658), (548, 3655), (685, 2924), (731, 2740), (860, 2329), (1370, 1462)]