81480575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{601}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 120929760

約数和(自身を除く): 39449185

約数列:

[1, 5, 11, 17, 25, 29, 55, 85, 145, 187, 275, 319, 425, 493, 601, 725, 935, 1595, 2465, 3005, 4675, 5423, 6611, 7975, 10217, 12325, 15025, 17429, 27115, 33055, 51085, 87145, 112387, 135575, 165275, 191719, 255425, 296293, 435725, 561935, 958595, 1481465, 2809675, 3259223, 4792975, 7407325, 16296115, 81480575]

約数ペア:

[(1, 81480575), (5, 16296115), (11, 7407325), (17, 4792975), (25, 3259223), (29, 2809675), (55, 1481465), (85, 958595), (145, 561935), (187, 435725), (275, 296293), (319, 255425), (425, 191719), (493, 165275), (601, 135575), (725, 112387), (935, 87145), (1595, 51085), (2465, 33055), (3005, 27115), (4675, 17429), (5423, 15025), (6611, 12325), (7975, 10217)]