20294872

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{883}}^1$

素因数の和:932

約数の個数: 48

約数和(自身を含む): 43678440

約数和(自身を除く): 23383568

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 169, 221, 338, 442, 676, 883, 884, 1352, 1766, 1768, 2873, 3532, 5746, 7064, 11479, 11492, 15011, 22958, 22984, 30022, 45916, 60044, 91832, 120088, 149227, 195143, 298454, 390286, 596908, 780572, 1193816, 1561144, 2536859, 5073718, 10147436, 20294872]

約数ペア:

[(1, 20294872), (2, 10147436), (4, 5073718), (8, 2536859), (13, 1561144), (17, 1193816), (26, 780572), (34, 596908), (52, 390286), (68, 298454), (104, 195143), (136, 149227), (169, 120088), (221, 91832), (338, 60044), (442, 45916), (676, 30022), (883, 22984), (884, 22958), (1352, 15011), (1766, 11492), (1768, 11479), (2873, 7064), (3532, 5746)]