20456704

素因数分解:

$2^8\times {\mathrm{41}}^1\times {\mathrm{1949}}^1$

素因数の和:2006

約数の個数: 36

約数和(自身を含む): 41850900

約数和(自身を除く): 21394196

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 128, 164, 256, 328, 656, 1312, 1949, 2624, 3898, 5248, 7796, 10496, 15592, 31184, 62368, 79909, 124736, 159818, 249472, 319636, 498944, 639272, 1278544, 2557088, 5114176, 10228352, 20456704]

約数ペア:

[(1, 20456704), (2, 10228352), (4, 5114176), (8, 2557088), (16, 1278544), (32, 639272), (41, 498944), (64, 319636), (82, 249472), (128, 159818), (164, 124736), (256, 79909), (328, 62368), (656, 31184), (1312, 15592), (1949, 10496), (2624, 7796), (3898, 5248)]