161880460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{4001}}^1$

素因数の和:4051

約数の個数: 72

約数和(自身を含む): 412814304

約数和(自身を除く): 250933844

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 289, 340, 476, 578, 595, 1156, 1190, 1445, 2023, 2380, 2890, 4001, 4046, 5780, 8002, 8092, 10115, 16004, 20005, 20230, 28007, 40010, 40460, 56014, 68017, 80020, 112028, 136034, 140035, 272068, 280070, 340085, 476119, 560140, 680170, 952238, 1156289, 1360340, 1904476, 2312578, 2380595, 4625156, 4761190, 5781445, 8094023, 9522380, 11562890, 16188046, 23125780, 32376092, 40470115, 80940230, 161880460]

約数ペア:

[(1, 161880460), (2, 80940230), (4, 40470115), (5, 32376092), (7, 23125780), (10, 16188046), (14, 11562890), (17, 9522380), (20, 8094023), (28, 5781445), (34, 4761190), (35, 4625156), (68, 2380595), (70, 2312578), (85, 1904476), (119, 1360340), (140, 1156289), (170, 952238), (238, 680170), (289, 560140), (340, 476119), (476, 340085), (578, 280070), (595, 272068), (1156, 140035), (1190, 136034), (1445, 112028), (2023, 80020), (2380, 68017), (2890, 56014), (4001, 40460), (4046, 40010), (5780, 28007), (8002, 20230), (8092, 20005), (10115, 16004)]