81402035

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 125483904

約数和(自身を除く): 44081869

約数列:

[1, 5, 11, 13, 17, 37, 55, 65, 85, 143, 181, 185, 187, 221, 407, 481, 629, 715, 905, 935, 1105, 1991, 2035, 2353, 2405, 2431, 3077, 3145, 5291, 6697, 6919, 8177, 9955, 11765, 12155, 15385, 25883, 26455, 33485, 33847, 34595, 40001, 40885, 73667, 87061, 89947, 113849, 129415, 169235, 200005, 368335, 435305, 440011, 449735, 569245, 957671, 1252339, 1480037, 2200055, 4788355, 6261695, 7400185, 16280407, 81402035]

約数ペア:

[(1, 81402035), (5, 16280407), (11, 7400185), (13, 6261695), (17, 4788355), (37, 2200055), (55, 1480037), (65, 1252339), (85, 957671), (143, 569245), (181, 449735), (185, 440011), (187, 435305), (221, 368335), (407, 200005), (481, 169235), (629, 129415), (715, 113849), (905, 89947), (935, 87061), (1105, 73667), (1991, 40885), (2035, 40001), (2353, 34595), (2405, 33847), (2431, 33485), (3077, 26455), (3145, 25883), (5291, 15385), (6697, 12155), (6919, 11765), (8177, 9955)]