7128400

素因数分解:

$2^4\times 5^2\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:340

約数の個数: 60

約数和(自身を含む): 17436384

約数和(自身を除く): 10307984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 100, 142, 200, 251, 284, 355, 400, 502, 568, 710, 1004, 1136, 1255, 1420, 1775, 2008, 2510, 2840, 3550, 4016, 5020, 5680, 6275, 7100, 10040, 12550, 14200, 17821, 20080, 25100, 28400, 35642, 50200, 71284, 89105, 100400, 142568, 178210, 285136, 356420, 445525, 712840, 891050, 1425680, 1782100, 3564200, 7128400]

約数ペア:

[(1, 7128400), (2, 3564200), (4, 1782100), (5, 1425680), (8, 891050), (10, 712840), (16, 445525), (20, 356420), (25, 285136), (40, 178210), (50, 142568), (71, 100400), (80, 89105), (100, 71284), (142, 50200), (200, 35642), (251, 28400), (284, 25100), (355, 20080), (400, 17821), (502, 14200), (568, 12550), (710, 10040), (1004, 7100), (1136, 6275), (1255, 5680), (1420, 5020), (1775, 4016), (2008, 3550), (2510, 2840)]