40190000

素因数分解:

$2^4\times 5^4\times {\mathrm{4019}}^1$

素因数の和:4047

約数の個数: 50

約数和(自身を含む): 97328220

約数和(自身を除く): 57138220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 4019, 5000, 8038, 10000, 16076, 20095, 32152, 40190, 64304, 80380, 100475, 160760, 200950, 321520, 401900, 502375, 803800, 1004750, 1607600, 2009500, 2511875, 4019000, 5023750, 8038000, 10047500, 20095000, 40190000]

約数ペア:

[(1, 40190000), (2, 20095000), (4, 10047500), (5, 8038000), (8, 5023750), (10, 4019000), (16, 2511875), (20, 2009500), (25, 1607600), (40, 1004750), (50, 803800), (80, 502375), (100, 401900), (125, 321520), (200, 200950), (250, 160760), (400, 100475), (500, 80380), (625, 64304), (1000, 40190), (1250, 32152), (2000, 20095), (2500, 16076), (4019, 10000), (5000, 8038)]