13042000

素因数分解:

$2^4\times 5^3\times {\mathrm{6521}}^1$

素因数の和:6544

約数の個数: 40

約数和(自身を含む): 31540392

約数和(自身を除く): 18498392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 6521, 13042, 26084, 32605, 52168, 65210, 104336, 130420, 163025, 260840, 326050, 521680, 652100, 815125, 1304200, 1630250, 2608400, 3260500, 6521000, 13042000]

約数ペア:

[(1, 13042000), (2, 6521000), (4, 3260500), (5, 2608400), (8, 1630250), (10, 1304200), (16, 815125), (20, 652100), (25, 521680), (40, 326050), (50, 260840), (80, 163025), (100, 130420), (125, 104336), (200, 65210), (250, 52168), (400, 32605), (500, 26084), (1000, 13042), (2000, 6521)]