71238400

素因数分解:

$2^8\times 5^2\times {\mathrm{11131}}^1$

素因数の和:11157

約数の個数: 54

約数和(自身を含む): 176342012

約数和(自身を除く): 105103612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 3200, 6400, 11131, 22262, 44524, 55655, 89048, 111310, 178096, 222620, 278275, 356192, 445240, 556550, 712384, 890480, 1113100, 1424768, 1780960, 2226200, 2849536, 3561920, 4452400, 7123840, 8904800, 14247680, 17809600, 35619200, 71238400]

約数ペア:

[(1, 71238400), (2, 35619200), (4, 17809600), (5, 14247680), (8, 8904800), (10, 7123840), (16, 4452400), (20, 3561920), (25, 2849536), (32, 2226200), (40, 1780960), (50, 1424768), (64, 1113100), (80, 890480), (100, 712384), (128, 556550), (160, 445240), (200, 356192), (256, 278275), (320, 222620), (400, 178096), (640, 111310), (800, 89048), (1280, 55655), (1600, 44524), (3200, 22262), (6400, 11131)]