1281990213

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:336

約数の個数: 128

約数和(自身を含む): 2422702080

約数和(自身を除く): 1140711867

約数列:

[1, 3, 7, 9, 17, 21, 27, 31, 51, 61, 63, 93, 119, 153, 183, 189, 211, 217, 279, 357, 427, 459, 527, 549, 633, 651, 837, 1037, 1071, 1281, 1477, 1581, 1647, 1891, 1899, 1953, 3111, 3213, 3587, 3689, 3843, 4431, 4743, 5673, 5697, 5859, 6541, 7259, 9333, 10761, 11067, 11529, 12871, 13237, 13293, 14229, 17019, 19623, 21777, 25109, 27999, 32147, 32283, 33201, 38613, 39711, 39879, 45787, 51057, 58869, 65331, 75327, 90097, 96441, 96849, 99603, 111197, 115839, 119133, 137361, 176607, 195993, 218807, 225029, 225981, 270291, 289323, 333591, 347517, 357399, 399001, 412083, 656421, 675087, 677943, 778379, 810873, 867969, 1000773, 1197003, 1236249, 1531649, 1969263, 2025261, 2335137, 2432619, 2793007, 3002319, 3591009, 4594947, 5907789, 6075783, 6783017, 7005411, 8379021, 10773027, 13784841, 20349051, 21016233, 25137063, 41354523, 47481119, 61047153, 75411189, 142443357, 183141459, 427330071, 1281990213]

約数ペア:

[(1, 1281990213), (3, 427330071), (7, 183141459), (9, 142443357), (17, 75411189), (21, 61047153), (27, 47481119), (31, 41354523), (51, 25137063), (61, 21016233), (63, 20349051), (93, 13784841), (119, 10773027), (153, 8379021), (183, 7005411), (189, 6783017), (211, 6075783), (217, 5907789), (279, 4594947), (357, 3591009), (427, 3002319), (459, 2793007), (527, 2432619), (549, 2335137), (633, 2025261), (651, 1969263), (837, 1531649), (1037, 1236249), (1071, 1197003), (1281, 1000773), (1477, 867969), (1581, 810873), (1647, 778379), (1891, 677943), (1899, 675087), (1953, 656421), (3111, 412083), (3213, 399001), (3587, 357399), (3689, 347517), (3843, 333591), (4431, 289323), (4743, 270291), (5673, 225981), (5697, 225029), (5859, 218807), (6541, 195993), (7259, 176607), (9333, 137361), (10761, 119133), (11067, 115839), (11529, 111197), (12871, 99603), (13237, 96849), (13293, 96441), (14229, 90097), (17019, 75327), (19623, 65331), (21777, 58869), (25109, 51057), (27999, 45787), (32147, 39879), (32283, 39711), (33201, 38613)]