278375799779

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{641}}^1$

素因数の和:830

約数の個数: 128

約数和(自身を含む): 378667008000

約数和(自身を除く): 100291208221

約数列:

[1, 7, 11, 31, 47, 49, 77, 79, 217, 329, 341, 343, 517, 539, 553, 641, 869, 1457, 1519, 2303, 2387, 2449, 3619, 3713, 3773, 3871, 4487, 6083, 7051, 10199, 10633, 16027, 16121, 16709, 17143, 19871, 25333, 25991, 26939, 27097, 30127, 31409, 40843, 42581, 49357, 50639, 71393, 112189, 115103, 116963, 120001, 139097, 177331, 181937, 188573, 210889, 218581, 219863, 285901, 298067, 331397, 345499, 354473, 499751, 557029, 785323, 805721, 840007, 933937, 973679, 1266133, 1273559, 1320011, 1476223, 1530067, 1569809, 2001307, 2319779, 2380033, 2418493, 2481311, 3899203, 5497261, 5640047, 6537559, 6815753, 8862931, 9240077, 10273307, 10333561, 10710469, 10988663, 14009149, 16238453, 16660231, 17267899, 17369177, 26180363, 27294421, 39480329, 45762913, 62040517, 71913149, 73781023, 74973283, 76920641, 113669171, 116621617, 120875293, 183262541, 191060947, 320340391, 434283619, 503392043, 516467161, 538444487, 811591253, 816351319, 846127051, 1282837787, 3523744301, 3615270127, 5681138771, 5922889357, 8979864509, 25306890889, 39767971397, 278375799779]

約数ペア:

[(1, 278375799779), (7, 39767971397), (11, 25306890889), (31, 8979864509), (47, 5922889357), (49, 5681138771), (77, 3615270127), (79, 3523744301), (217, 1282837787), (329, 846127051), (341, 816351319), (343, 811591253), (517, 538444487), (539, 516467161), (553, 503392043), (641, 434283619), (869, 320340391), (1457, 191060947), (1519, 183262541), (2303, 120875293), (2387, 116621617), (2449, 113669171), (3619, 76920641), (3713, 74973283), (3773, 73781023), (3871, 71913149), (4487, 62040517), (6083, 45762913), (7051, 39480329), (10199, 27294421), (10633, 26180363), (16027, 17369177), (16121, 17267899), (16709, 16660231), (17143, 16238453), (19871, 14009149), (25333, 10988663), (25991, 10710469), (26939, 10333561), (27097, 10273307), (30127, 9240077), (31409, 8862931), (40843, 6815753), (42581, 6537559), (49357, 5640047), (50639, 5497261), (71393, 3899203), (112189, 2481311), (115103, 2418493), (116963, 2380033), (120001, 2319779), (139097, 2001307), (177331, 1569809), (181937, 1530067), (188573, 1476223), (210889, 1320011), (218581, 1273559), (219863, 1266133), (285901, 973679), (298067, 933937), (331397, 840007), (345499, 805721), (354473, 785323), (499751, 557029)]