19569440

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11119}}^1$

素因数の和:11145

約数の個数: 48

約数和(自身を含む): 50440320

約数和(自身を除く): 30870880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 11119, 22238, 44476, 55595, 88952, 111190, 122309, 177904, 222380, 244618, 355808, 444760, 489236, 611545, 889520, 978472, 1223090, 1779040, 1956944, 2446180, 3913888, 4892360, 9784720, 19569440]

約数ペア:

[(1, 19569440), (2, 9784720), (4, 4892360), (5, 3913888), (8, 2446180), (10, 1956944), (11, 1779040), (16, 1223090), (20, 978472), (22, 889520), (32, 611545), (40, 489236), (44, 444760), (55, 355808), (80, 244618), (88, 222380), (110, 177904), (160, 122309), (176, 111190), (220, 88952), (352, 55595), (440, 44476), (880, 22238), (1760, 11119)]