39998960

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29411}}^1$

素因数の和:29441

約数の個数: 40

約数和(自身を含む): 98471376

約数和(自身を除く): 58472416

約数列:

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

約数ペア:

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