80949920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29761}}^1$

素因数の和:29793

約数の個数: 48

約数和(自身を含む): 202500648

約数和(自身を除く): 121550728

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 29761, 59522, 119044, 148805, 238088, 297610, 476176, 505937, 595220, 952352, 1011874, 1190440, 2023748, 2380880, 2529685, 4047496, 4761760, 5059370, 8094992, 10118740, 16189984, 20237480, 40474960, 80949920]

約数ペア:

[(1, 80949920), (2, 40474960), (4, 20237480), (5, 16189984), (8, 10118740), (10, 8094992), (16, 5059370), (17, 4761760), (20, 4047496), (32, 2529685), (34, 2380880), (40, 2023748), (68, 1190440), (80, 1011874), (85, 952352), (136, 595220), (160, 505937), (170, 476176), (272, 297610), (340, 238088), (544, 148805), (680, 119044), (1360, 59522), (2720, 29761)]