81657290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3359}}^1$

素因数の和:3407

約数の個数: 64

約数和(自身を含む): 182891520

約数和(自身を除く): 101234230

約数列:

[1, 2, 5, 10, 11, 13, 17, 22, 26, 34, 55, 65, 85, 110, 130, 143, 170, 187, 221, 286, 374, 442, 715, 935, 1105, 1430, 1870, 2210, 2431, 3359, 4862, 6718, 12155, 16795, 24310, 33590, 36949, 43667, 57103, 73898, 87334, 114206, 184745, 218335, 285515, 369490, 436670, 480337, 571030, 628133, 742339, 960674, 1256266, 1484678, 2401685, 3140665, 3711695, 4803370, 6281330, 7423390, 8165729, 16331458, 40828645, 81657290]

約数ペア:

[(1, 81657290), (2, 40828645), (5, 16331458), (10, 8165729), (11, 7423390), (13, 6281330), (17, 4803370), (22, 3711695), (26, 3140665), (34, 2401685), (55, 1484678), (65, 1256266), (85, 960674), (110, 742339), (130, 628133), (143, 571030), (170, 480337), (187, 436670), (221, 369490), (286, 285515), (374, 218335), (442, 184745), (715, 114206), (935, 87334), (1105, 73898), (1430, 57103), (1870, 43667), (2210, 36949), (2431, 33590), (3359, 24310), (4862, 16795), (6718, 12155)]