20272760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16349}}^1$

素因数の和:16391

約数の個数: 32

約数和(自身を含む): 47088000

約数和(自身を除く): 26815240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16349, 32698, 65396, 81745, 130792, 163490, 326980, 506819, 653960, 1013638, 2027276, 2534095, 4054552, 5068190, 10136380, 20272760]

約数ペア:

[(1, 20272760), (2, 10136380), (4, 5068190), (5, 4054552), (8, 2534095), (10, 2027276), (20, 1013638), (31, 653960), (40, 506819), (62, 326980), (124, 163490), (155, 130792), (248, 81745), (310, 65396), (620, 32698), (1240, 16349)]