25491620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16553}}^1$

素因数の和:16580

約数の個数: 48

約数和(自身を含む): 66745728

約数和(自身を除く): 41254108

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 16553, 33106, 66212, 82765, 115871, 165530, 182083, 231742, 331060, 364166, 463484, 579355, 728332, 910415, 1158710, 1274581, 1820830, 2317420, 2549162, 3641660, 5098324, 6372905, 12745810, 25491620]

約数ペア:

[(1, 25491620), (2, 12745810), (4, 6372905), (5, 5098324), (7, 3641660), (10, 2549162), (11, 2317420), (14, 1820830), (20, 1274581), (22, 1158710), (28, 910415), (35, 728332), (44, 579355), (55, 463484), (70, 364166), (77, 331060), (110, 231742), (140, 182083), (154, 165530), (220, 115871), (308, 82765), (385, 66212), (770, 33106), (1540, 16553)]