20777760440

素因数分解:

$2^3\times 5^1\times {\mathrm{13477}}^1\times {\mathrm{38543}}^1$

素因数の和:52031

約数の個数: 32

約数和(自身を含む): 46754642880

約数和(自身を除く): 25976882440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 13477, 26954, 38543, 53908, 67385, 77086, 107816, 134770, 154172, 192715, 269540, 308344, 385430, 539080, 770860, 1541720, 519444011, 1038888022, 2077776044, 2597220055, 4155552088, 5194440110, 10388880220, 20777760440]

約数ペア:

[(1, 20777760440), (2, 10388880220), (4, 5194440110), (5, 4155552088), (8, 2597220055), (10, 2077776044), (20, 1038888022), (40, 519444011), (13477, 1541720), (26954, 770860), (38543, 539080), (53908, 385430), (67385, 308344), (77086, 269540), (107816, 192715), (134770, 154172)]