20266000

素因数分解:

$2^4\times 5^3\times {\mathrm{10133}}^1$

素因数の和:10156

約数の個数: 40

約数和(自身を含む): 49008024

約数和(自身を除く): 28742024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 10133, 20266, 40532, 50665, 81064, 101330, 162128, 202660, 253325, 405320, 506650, 810640, 1013300, 1266625, 2026600, 2533250, 4053200, 5066500, 10133000, 20266000]

約数ペア:

[(1, 20266000), (2, 10133000), (4, 5066500), (5, 4053200), (8, 2533250), (10, 2026600), (16, 1266625), (20, 1013300), (25, 810640), (40, 506650), (50, 405320), (80, 253325), (100, 202660), (125, 162128), (200, 101330), (250, 81064), (400, 50665), (500, 40532), (1000, 20266), (2000, 10133)]