20163876824

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{644131}}^1$

素因数の和:644200

約数の個数: 64

約数和(自身を含む): 47614237440

約数和(自身を除く): 27450360616

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 43, 52, 56, 86, 91, 104, 172, 182, 301, 344, 364, 559, 602, 728, 1118, 1204, 2236, 2408, 3913, 4472, 7826, 15652, 31304, 644131, 1288262, 2576524, 4508917, 5153048, 8373703, 9017834, 16747406, 18035668, 27697633, 33494812, 36071336, 55395266, 58615921, 66989624, 110790532, 117231842, 193883431, 221581064, 234463684, 360069229, 387766862, 468927368, 720138458, 775533724, 1440276916, 1551067448, 2520484603, 2880553832, 5040969206, 10081938412, 20163876824]

約数ペア:

[(1, 20163876824), (2, 10081938412), (4, 5040969206), (7, 2880553832), (8, 2520484603), (13, 1551067448), (14, 1440276916), (26, 775533724), (28, 720138458), (43, 468927368), (52, 387766862), (56, 360069229), (86, 234463684), (91, 221581064), (104, 193883431), (172, 117231842), (182, 110790532), (301, 66989624), (344, 58615921), (364, 55395266), (559, 36071336), (602, 33494812), (728, 27697633), (1118, 18035668), (1204, 16747406), (2236, 9017834), (2408, 8373703), (3913, 5153048), (4472, 4508917), (7826, 2576524), (15652, 1288262), (31304, 644131)]