20525852

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 39984000

約数和(自身を除く): 19458148

約数列:

[1, 2, 4, 19, 29, 38, 58, 67, 76, 116, 134, 139, 268, 278, 551, 556, 1102, 1273, 1943, 2204, 2546, 2641, 3886, 4031, 5092, 5282, 7772, 8062, 9313, 10564, 16124, 18626, 36917, 37252, 73834, 76589, 147668, 153178, 176947, 270077, 306356, 353894, 540154, 707788, 1080308, 5131463, 10262926, 20525852]

約数ペア:

[(1, 20525852), (2, 10262926), (4, 5131463), (19, 1080308), (29, 707788), (38, 540154), (58, 353894), (67, 306356), (76, 270077), (116, 176947), (134, 153178), (139, 147668), (268, 76589), (278, 73834), (551, 37252), (556, 36917), (1102, 18626), (1273, 16124), (1943, 10564), (2204, 9313), (2546, 8062), (2641, 7772), (3886, 5282), (4031, 5092)]