1216028680

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{821641}}^1$

素因数の和:821689

約数の個数: 32

約数和(自身を含む): 2810015640

約数和(自身を除く): 1593986960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 821641, 1643282, 3286564, 4108205, 6573128, 8216410, 16432820, 30400717, 32865640, 60801434, 121602868, 152003585, 243205736, 304007170, 608014340, 1216028680]

約数ペア:

[(1, 1216028680), (2, 608014340), (4, 304007170), (5, 243205736), (8, 152003585), (10, 121602868), (20, 60801434), (37, 32865640), (40, 30400717), (74, 16432820), (148, 8216410), (185, 6573128), (296, 4108205), (370, 3286564), (740, 1643282), (1480, 821641)]