257764080

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2161}}^1$

素因数の和:2255

約数の個数: 160

約数和(自身を含む): 926512128

約数和(自身を除く): 668748048

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 71, 80, 84, 105, 112, 120, 140, 142, 168, 210, 213, 240, 280, 284, 336, 355, 420, 426, 497, 560, 568, 710, 840, 852, 994, 1065, 1136, 1420, 1491, 1680, 1704, 1988, 2130, 2161, 2485, 2840, 2982, 3408, 3976, 4260, 4322, 4970, 5680, 5964, 6483, 7455, 7952, 8520, 8644, 9940, 10805, 11928, 12966, 14910, 15127, 17040, 17288, 19880, 21610, 23856, 25932, 29820, 30254, 32415, 34576, 39760, 43220, 45381, 51864, 59640, 60508, 64830, 75635, 86440, 90762, 103728, 119280, 121016, 129660, 151270, 153431, 172880, 181524, 226905, 242032, 259320, 302540, 306862, 363048, 453810, 460293, 518640, 605080, 613724, 726096, 767155, 907620, 920586, 1074017, 1210160, 1227448, 1534310, 1815240, 1841172, 2148034, 2301465, 2454896, 3068620, 3222051, 3630480, 3682344, 4296068, 4602930, 5370085, 6137240, 6444102, 7364688, 8592136, 9205860, 10740170, 12274480, 12888204, 16110255, 17184272, 18411720, 21480340, 25776408, 32220510, 36823440, 42960680, 51552816, 64441020, 85921360, 128882040, 257764080]

約数ペア:

[(1, 257764080), (2, 128882040), (3, 85921360), (4, 64441020), (5, 51552816), (6, 42960680), (7, 36823440), (8, 32220510), (10, 25776408), (12, 21480340), (14, 18411720), (15, 17184272), (16, 16110255), (20, 12888204), (21, 12274480), (24, 10740170), (28, 9205860), (30, 8592136), (35, 7364688), (40, 6444102), (42, 6137240), (48, 5370085), (56, 4602930), (60, 4296068), (70, 3682344), (71, 3630480), (80, 3222051), (84, 3068620), (105, 2454896), (112, 2301465), (120, 2148034), (140, 1841172), (142, 1815240), (168, 1534310), (210, 1227448), (213, 1210160), (240, 1074017), (280, 920586), (284, 907620), (336, 767155), (355, 726096), (420, 613724), (426, 605080), (497, 518640), (560, 460293), (568, 453810), (710, 363048), (840, 306862), (852, 302540), (994, 259320), (1065, 242032), (1136, 226905), (1420, 181524), (1491, 172880), (1680, 153431), (1704, 151270), (1988, 129660), (2130, 121016), (2161, 119280), (2485, 103728), (2840, 90762), (2982, 86440), (3408, 75635), (3976, 64830), (4260, 60508), (4322, 59640), (4970, 51864), (5680, 45381), (5964, 43220), (6483, 39760), (7455, 34576), (7952, 32415), (8520, 30254), (8644, 29820), (9940, 25932), (10805, 23856), (11928, 21610), (12966, 19880), (14910, 17288), (15127, 17040)]