208494904

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{179}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 423360000

約数和(自身を除く): 214865096

約数列:

[1, 2, 4, 8, 19, 38, 76, 79, 97, 152, 158, 179, 194, 316, 358, 388, 632, 716, 776, 1432, 1501, 1843, 3002, 3401, 3686, 6004, 6802, 7372, 7663, 12008, 13604, 14141, 14744, 15326, 17363, 27208, 28282, 30652, 34726, 56564, 61304, 69452, 113128, 138904, 145597, 268679, 291194, 329897, 537358, 582388, 659794, 1074716, 1164776, 1319588, 1371677, 2149432, 2639176, 2743354, 5486708, 10973416, 26061863, 52123726, 104247452, 208494904]

約数ペア:

[(1, 208494904), (2, 104247452), (4, 52123726), (8, 26061863), (19, 10973416), (38, 5486708), (76, 2743354), (79, 2639176), (97, 2149432), (152, 1371677), (158, 1319588), (179, 1164776), (194, 1074716), (316, 659794), (358, 582388), (388, 537358), (632, 329897), (716, 291194), (776, 268679), (1432, 145597), (1501, 138904), (1843, 113128), (3002, 69452), (3401, 61304), (3686, 56564), (6004, 34726), (6802, 30652), (7372, 28282), (7663, 27208), (12008, 17363), (13604, 15326), (14141, 14744)]