25561420

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{383}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 55738368

約数和(自身を除く): 30176948

約数列:

[1, 2, 4, 5, 10, 20, 47, 71, 94, 142, 188, 235, 284, 355, 383, 470, 710, 766, 940, 1420, 1532, 1915, 3337, 3830, 6674, 7660, 13348, 16685, 18001, 27193, 33370, 36002, 54386, 66740, 72004, 90005, 108772, 135965, 180010, 271930, 360020, 543860, 1278071, 2556142, 5112284, 6390355, 12780710, 25561420]

約数ペア:

[(1, 25561420), (2, 12780710), (4, 6390355), (5, 5112284), (10, 2556142), (20, 1278071), (47, 543860), (71, 360020), (94, 271930), (142, 180010), (188, 135965), (235, 108772), (284, 90005), (355, 72004), (383, 66740), (470, 54386), (710, 36002), (766, 33370), (940, 27193), (1420, 18001), (1532, 16685), (1915, 13348), (3337, 7660), (3830, 6674)]