81647500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{2969}}^1$

素因数の和:3004

約数の個数: 60

約数和(自身を含む): 194843880

約数和(自身を除く): 113196380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 625, 1100, 1250, 1375, 2500, 2750, 2969, 5500, 5938, 6875, 11876, 13750, 14845, 27500, 29690, 32659, 59380, 65318, 74225, 130636, 148450, 163295, 296900, 326590, 371125, 653180, 742250, 816475, 1484500, 1632950, 1855625, 3265900, 3711250, 4082375, 7422500, 8164750, 16329500, 20411875, 40823750, 81647500]

約数ペア:

[(1, 81647500), (2, 40823750), (4, 20411875), (5, 16329500), (10, 8164750), (11, 7422500), (20, 4082375), (22, 3711250), (25, 3265900), (44, 1855625), (50, 1632950), (55, 1484500), (100, 816475), (110, 742250), (125, 653180), (220, 371125), (250, 326590), (275, 296900), (500, 163295), (550, 148450), (625, 130636), (1100, 74225), (1250, 65318), (1375, 59380), (2500, 32659), (2750, 29690), (2969, 27500), (5500, 14845), (5938, 13750), (6875, 11876)]