20723584

素因数分解:

$2^7\times 7^1\times {\mathrm{101}}^1\times {\mathrm{229}}^1$

素因数の和:351

約数の個数: 64

約数和(自身を含む): 47858400

約数和(自身を除く): 27134816

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 101, 112, 128, 202, 224, 229, 404, 448, 458, 707, 808, 896, 916, 1414, 1603, 1616, 1832, 2828, 3206, 3232, 3664, 5656, 6412, 6464, 7328, 11312, 12824, 12928, 14656, 22624, 23129, 25648, 29312, 45248, 46258, 51296, 90496, 92516, 102592, 161903, 185032, 205184, 323806, 370064, 647612, 740128, 1295224, 1480256, 2590448, 2960512, 5180896, 10361792, 20723584]

約数ペア:

[(1, 20723584), (2, 10361792), (4, 5180896), (7, 2960512), (8, 2590448), (14, 1480256), (16, 1295224), (28, 740128), (32, 647612), (56, 370064), (64, 323806), (101, 205184), (112, 185032), (128, 161903), (202, 102592), (224, 92516), (229, 90496), (404, 51296), (448, 46258), (458, 45248), (707, 29312), (808, 25648), (896, 23129), (916, 22624), (1414, 14656), (1603, 12928), (1616, 12824), (1832, 11312), (2828, 7328), (3206, 6464), (3232, 6412), (3664, 5656)]