81308800

素因数分解:

$2^7\times 5^2\times {\mathrm{25409}}^1$

素因数の和:25433

約数の個数: 48

約数和(自身を含む): 200866050

約数和(自身を除く): 119557250

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 25409, 50818, 101636, 127045, 203272, 254090, 406544, 508180, 635225, 813088, 1016360, 1270450, 1626176, 2032720, 2540900, 3252352, 4065440, 5081800, 8130880, 10163600, 16261760, 20327200, 40654400, 81308800]

約数ペア:

[(1, 81308800), (2, 40654400), (4, 20327200), (5, 16261760), (8, 10163600), (10, 8130880), (16, 5081800), (20, 4065440), (25, 3252352), (32, 2540900), (40, 2032720), (50, 1626176), (64, 1270450), (80, 1016360), (100, 813088), (128, 635225), (160, 508180), (200, 406544), (320, 254090), (400, 203272), (640, 127045), (800, 101636), (1600, 50818), (3200, 25409)]