31780540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{7603}}^1$

素因数の和:7642

約数の個数: 48

約数和(自身を含む): 76648320

約数和(自身を除く): 44867780

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 7603, 15206, 30412, 38015, 76030, 83633, 144457, 152060, 167266, 288914, 334532, 418165, 577828, 722285, 836330, 1444570, 1589027, 1672660, 2889140, 3178054, 6356108, 7945135, 15890270, 31780540]

約数ペア:

[(1, 31780540), (2, 15890270), (4, 7945135), (5, 6356108), (10, 3178054), (11, 2889140), (19, 1672660), (20, 1589027), (22, 1444570), (38, 836330), (44, 722285), (55, 577828), (76, 418165), (95, 334532), (110, 288914), (190, 167266), (209, 152060), (220, 144457), (380, 83633), (418, 76030), (836, 38015), (1045, 30412), (2090, 15206), (4180, 7603)]