20845664

素因数分解:

$2^5\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3209}}^1$

素因数の和:3255

約数の個数: 48

約数和(自身を含む): 48535200

約数和(自身を除く): 27689536

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 56, 58, 112, 116, 203, 224, 232, 406, 464, 812, 928, 1624, 3209, 3248, 6418, 6496, 12836, 22463, 25672, 44926, 51344, 89852, 93061, 102688, 179704, 186122, 359408, 372244, 651427, 718816, 744488, 1302854, 1488976, 2605708, 2977952, 5211416, 10422832, 20845664]

約数ペア:

[(1, 20845664), (2, 10422832), (4, 5211416), (7, 2977952), (8, 2605708), (14, 1488976), (16, 1302854), (28, 744488), (29, 718816), (32, 651427), (56, 372244), (58, 359408), (112, 186122), (116, 179704), (203, 102688), (224, 93061), (232, 89852), (406, 51344), (464, 44926), (812, 25672), (928, 22463), (1624, 12836), (3209, 6496), (3248, 6418)]