40210000

素因数分解:

$2^4\times 5^4\times {\mathrm{4021}}^1$

素因数の和:4049

約数の個数: 50

約数和(自身を含む): 97376642

約数和(自身を除く): 57166642

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, 4021, 5000, 8042, 10000, 16084, 20105, 32168, 40210, 64336, 80420, 100525, 160840, 201050, 321680, 402100, 502625, 804200, 1005250, 1608400, 2010500, 2513125, 4021000, 5026250, 8042000, 10052500, 20105000, 40210000]

約数ペア:

[(1, 40210000), (2, 20105000), (4, 10052500), (5, 8042000), (8, 5026250), (10, 4021000), (16, 2513125), (20, 2010500), (25, 1608400), (40, 1005250), (50, 804200), (80, 502625), (100, 402100), (125, 321680), (200, 201050), (250, 160840), (400, 100525), (500, 80420), (625, 64336), (1000, 40210), (1250, 32168), (2000, 20105), (2500, 16084), (4021, 10000), (5000, 8042)]