639960888

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{1277}}^1$

素因数の和:1469

約数の個数: 128

約数和(自身を含む): 1938470400

約数和(自身を除く): 1298509512

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 19, 21, 24, 28, 38, 42, 56, 57, 76, 84, 114, 133, 152, 157, 168, 228, 266, 314, 399, 456, 471, 532, 628, 798, 942, 1064, 1099, 1256, 1277, 1596, 1884, 2198, 2554, 2983, 3192, 3297, 3768, 3831, 4396, 5108, 5966, 6594, 7662, 8792, 8939, 8949, 10216, 11932, 13188, 15324, 17878, 17898, 20881, 23864, 24263, 26376, 26817, 30648, 35756, 35796, 41762, 48526, 53634, 62643, 71512, 71592, 72789, 83524, 97052, 107268, 125286, 145578, 167048, 169841, 194104, 200489, 214536, 250572, 291156, 339682, 400978, 501144, 509523, 582312, 601467, 679364, 801956, 1019046, 1202934, 1358728, 1403423, 1603912, 2038092, 2405868, 2806846, 3809291, 4076184, 4210269, 4811736, 5613692, 7618582, 8420538, 11227384, 11427873, 15237164, 16841076, 22855746, 26665037, 30474328, 33682152, 45711492, 53330074, 79995111, 91422984, 106660148, 159990222, 213320296, 319980444, 639960888]

約数ペア:

[(1, 639960888), (2, 319980444), (3, 213320296), (4, 159990222), (6, 106660148), (7, 91422984), (8, 79995111), (12, 53330074), (14, 45711492), (19, 33682152), (21, 30474328), (24, 26665037), (28, 22855746), (38, 16841076), (42, 15237164), (56, 11427873), (57, 11227384), (76, 8420538), (84, 7618582), (114, 5613692), (133, 4811736), (152, 4210269), (157, 4076184), (168, 3809291), (228, 2806846), (266, 2405868), (314, 2038092), (399, 1603912), (456, 1403423), (471, 1358728), (532, 1202934), (628, 1019046), (798, 801956), (942, 679364), (1064, 601467), (1099, 582312), (1256, 509523), (1277, 501144), (1596, 400978), (1884, 339682), (2198, 291156), (2554, 250572), (2983, 214536), (3192, 200489), (3297, 194104), (3768, 169841), (3831, 167048), (4396, 145578), (5108, 125286), (5966, 107268), (6594, 97052), (7662, 83524), (8792, 72789), (8939, 71592), (8949, 71512), (10216, 62643), (11932, 53634), (13188, 48526), (15324, 41762), (17878, 35796), (17898, 35756), (20881, 30648), (23864, 26817), (24263, 26376)]