81661250

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{5939}}^1$

素因数の和:5972

約数の個数: 40

約数和(自身を含む): 167009040

約数和(自身を除く): 85347790

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 625, 1250, 1375, 2750, 5939, 6875, 11878, 13750, 29695, 59390, 65329, 130658, 148475, 296950, 326645, 653290, 742375, 1484750, 1633225, 3266450, 3711875, 7423750, 8166125, 16332250, 40830625, 81661250]

約数ペア:

[(1, 81661250), (2, 40830625), (5, 16332250), (10, 8166125), (11, 7423750), (22, 3711875), (25, 3266450), (50, 1633225), (55, 1484750), (110, 742375), (125, 653290), (250, 326645), (275, 296950), (550, 148475), (625, 130658), (1250, 65329), (1375, 59390), (2750, 29695), (5939, 13750), (6875, 11878)]