61789220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{691}}^1$

素因数の和:980

約数の個数: 48

約数和(自身を含む): 138112128

約数和(自身を除く): 76322908

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 263, 340, 526, 691, 1052, 1315, 1382, 2630, 2764, 3455, 4471, 5260, 6910, 8942, 11747, 13820, 17884, 22355, 23494, 44710, 46988, 58735, 89420, 117470, 181733, 234940, 363466, 726932, 908665, 1817330, 3089461, 3634660, 6178922, 12357844, 15447305, 30894610, 61789220]

約数ペア:

[(1, 61789220), (2, 30894610), (4, 15447305), (5, 12357844), (10, 6178922), (17, 3634660), (20, 3089461), (34, 1817330), (68, 908665), (85, 726932), (170, 363466), (263, 234940), (340, 181733), (526, 117470), (691, 89420), (1052, 58735), (1315, 46988), (1382, 44710), (2630, 23494), (2764, 22355), (3455, 17884), (4471, 13820), (5260, 11747), (6910, 8942)]