19538000

素因数分解:

$2^4\times 5^3\times {\mathrm{9769}}^1$

素因数の和:9792

約数の個数: 40

約数和(自身を含む): 47247720

約数和(自身を除く): 27709720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 9769, 19538, 39076, 48845, 78152, 97690, 156304, 195380, 244225, 390760, 488450, 781520, 976900, 1221125, 1953800, 2442250, 3907600, 4884500, 9769000, 19538000]

約数ペア:

[(1, 19538000), (2, 9769000), (4, 4884500), (5, 3907600), (8, 2442250), (10, 1953800), (16, 1221125), (20, 976900), (25, 781520), (40, 488450), (50, 390760), (80, 244225), (100, 195380), (125, 156304), (200, 97690), (250, 78152), (400, 48845), (500, 39076), (1000, 19538), (2000, 9769)]