18738335

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 30287520

約数和(自身を除く): 11549185

約数列:

[1, 5, 7, 11, 17, 35, 49, 55, 77, 85, 119, 187, 245, 385, 409, 539, 595, 833, 935, 1309, 2045, 2695, 2863, 4165, 4499, 6545, 6953, 9163, 14315, 20041, 22495, 31493, 34765, 45815, 48671, 76483, 100205, 157465, 220451, 243355, 340697, 382415, 535381, 1102255, 1703485, 2676905, 3747667, 18738335]

約数ペア:

[(1, 18738335), (5, 3747667), (7, 2676905), (11, 1703485), (17, 1102255), (35, 535381), (49, 382415), (55, 340697), (77, 243355), (85, 220451), (119, 157465), (187, 100205), (245, 76483), (385, 48671), (409, 45815), (539, 34765), (595, 31493), (833, 22495), (935, 20041), (1309, 14315), (2045, 9163), (2695, 6953), (2863, 6545), (4165, 4499)]