20105997920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7391911}}^1$

素因数の和:7391943

約数の個数: 48

約数和(自身を含む): 50294569248

約数和(自身を除く): 30188571328

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, 7391911, 14783822, 29567644, 36959555, 59135288, 73919110, 118270576, 125662487, 147838220, 236541152, 251324974, 295676440, 502649948, 591352880, 628312435, 1005299896, 1182705760, 1256624870, 2010599792, 2513249740, 4021199584, 5026499480, 10052998960, 20105997920]

約数ペア:

[(1, 20105997920), (2, 10052998960), (4, 5026499480), (5, 4021199584), (8, 2513249740), (10, 2010599792), (16, 1256624870), (17, 1182705760), (20, 1005299896), (32, 628312435), (34, 591352880), (40, 502649948), (68, 295676440), (80, 251324974), (85, 236541152), (136, 147838220), (160, 125662487), (170, 118270576), (272, 73919110), (340, 59135288), (544, 36959555), (680, 29567644), (1360, 14783822), (2720, 7391911)]