79997920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29411}}^1$

素因数の和:29443

約数の個数: 48

約数和(自身を含む): 200119248

約数和(自身を除く): 120121328

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, 29411, 58822, 117644, 147055, 235288, 294110, 470576, 499987, 588220, 941152, 999974, 1176440, 1999948, 2352880, 2499935, 3999896, 4705760, 4999870, 7999792, 9999740, 15999584, 19999480, 39998960, 79997920]

約数ペア:

[(1, 79997920), (2, 39998960), (4, 19999480), (5, 15999584), (8, 9999740), (10, 7999792), (16, 4999870), (17, 4705760), (20, 3999896), (32, 2499935), (34, 2352880), (40, 1999948), (68, 1176440), (80, 999974), (85, 941152), (136, 588220), (160, 499987), (170, 470576), (272, 294110), (340, 235288), (544, 147055), (680, 117644), (1360, 58822), (2720, 29411)]