82781860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31121}}^1$

素因数の和:31156

約数の個数: 48

約数和(自身を含む): 209139840

約数和(自身を除く): 126357980

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 31121, 62242, 124484, 155605, 217847, 311210, 435694, 591299, 622420, 871388, 1089235, 1182598, 2178470, 2365196, 2956495, 4139093, 4356940, 5912990, 8278186, 11825980, 16556372, 20695465, 41390930, 82781860]

約数ペア:

[(1, 82781860), (2, 41390930), (4, 20695465), (5, 16556372), (7, 11825980), (10, 8278186), (14, 5912990), (19, 4356940), (20, 4139093), (28, 2956495), (35, 2365196), (38, 2178470), (70, 1182598), (76, 1089235), (95, 871388), (133, 622420), (140, 591299), (190, 435694), (266, 311210), (380, 217847), (532, 155605), (665, 124484), (1330, 62242), (2660, 31121)]