20684512

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{809}}^1$

素因数の和:883

約数の個数: 48

約数和(自身を含む): 44089920

約数和(自身を除く): 23405408

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 47, 68, 94, 136, 188, 272, 376, 544, 752, 799, 809, 1504, 1598, 1618, 3196, 3236, 6392, 6472, 12784, 12944, 13753, 25568, 25888, 27506, 38023, 55012, 76046, 110024, 152092, 220048, 304184, 440096, 608368, 646391, 1216736, 1292782, 2585564, 5171128, 10342256, 20684512]

約数ペア:

[(1, 20684512), (2, 10342256), (4, 5171128), (8, 2585564), (16, 1292782), (17, 1216736), (32, 646391), (34, 608368), (47, 440096), (68, 304184), (94, 220048), (136, 152092), (188, 110024), (272, 76046), (376, 55012), (544, 38023), (752, 27506), (799, 25888), (809, 25568), (1504, 13753), (1598, 12944), (1618, 12784), (3196, 6472), (3236, 6392)]