20778072

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{367}}^1$

素因数の和:720

約数の個数: 64

約数和(自身を含む): 59704320

約数和(自身を除く): 38926248

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 337, 367, 674, 734, 1011, 1101, 1348, 1468, 2022, 2202, 2359, 2569, 2696, 2936, 4044, 4404, 4718, 5138, 7077, 7707, 8088, 8808, 9436, 10276, 14154, 15414, 18872, 20552, 28308, 30828, 56616, 61656, 123679, 247358, 371037, 494716, 742074, 865753, 989432, 1484148, 1731506, 2597259, 2968296, 3463012, 5194518, 6926024, 10389036, 20778072]

約数ペア:

[(1, 20778072), (2, 10389036), (3, 6926024), (4, 5194518), (6, 3463012), (7, 2968296), (8, 2597259), (12, 1731506), (14, 1484148), (21, 989432), (24, 865753), (28, 742074), (42, 494716), (56, 371037), (84, 247358), (168, 123679), (337, 61656), (367, 56616), (674, 30828), (734, 28308), (1011, 20552), (1101, 18872), (1348, 15414), (1468, 14154), (2022, 10276), (2202, 9436), (2359, 8808), (2569, 8088), (2696, 7707), (2936, 7077), (4044, 5138), (4404, 4718)]