20402428

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{9257}}^1$

素因数の和:9309

約数の個数: 24

約数和(自身を含む): 38883600

約数和(自身を除く): 18481172

約数列:

[1, 2, 4, 19, 29, 38, 58, 76, 116, 551, 1102, 2204, 9257, 18514, 37028, 175883, 268453, 351766, 536906, 703532, 1073812, 5100607, 10201214, 20402428]

約数ペア:

[(1, 20402428), (2, 10201214), (4, 5100607), (19, 1073812), (29, 703532), (38, 536906), (58, 351766), (76, 268453), (116, 175883), (551, 37028), (1102, 18514), (2204, 9257)]