40190120

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{4003}}^1$

素因数の和:4265

約数の個数: 32

約数和(自身を含む): 90810720

約数和(自身を除く): 50620600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 4003, 5020, 8006, 10040, 16012, 20015, 32024, 40030, 80060, 160120, 1004753, 2009506, 4019012, 5023765, 8038024, 10047530, 20095060, 40190120]

約数ペア:

[(1, 40190120), (2, 20095060), (4, 10047530), (5, 8038024), (8, 5023765), (10, 4019012), (20, 2009506), (40, 1004753), (251, 160120), (502, 80060), (1004, 40030), (1255, 32024), (2008, 20015), (2510, 16012), (4003, 10040), (5020, 8006)]