261884280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:254

約数の個数: 256

約数和(自身を含む): 945561600

約数和(自身を除く): 683677320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 89, 93, 105, 113, 120, 124, 140, 155, 168, 178, 186, 210, 217, 226, 248, 267, 280, 310, 339, 356, 372, 420, 434, 445, 452, 465, 534, 565, 620, 623, 651, 678, 712, 744, 791, 840, 868, 890, 904, 930, 1068, 1085, 1130, 1240, 1246, 1302, 1335, 1356, 1582, 1695, 1736, 1780, 1860, 1869, 2136, 2170, 2260, 2373, 2492, 2604, 2670, 2712, 2759, 3115, 3164, 3255, 3390, 3503, 3560, 3720, 3738, 3955, 4340, 4520, 4746, 4984, 5208, 5340, 5518, 6230, 6328, 6510, 6780, 7006, 7476, 7910, 8277, 8680, 9345, 9492, 10057, 10509, 10680, 11036, 11865, 12460, 13020, 13560, 13795, 14012, 14952, 15820, 16554, 17515, 18690, 18984, 19313, 20114, 21018, 22072, 23730, 24521, 24920, 26040, 27590, 28024, 30171, 31640, 33108, 35030, 37380, 38626, 40228, 41385, 42036, 47460, 49042, 50285, 52545, 55180, 57939, 60342, 66216, 70060, 70399, 73563, 74760, 77252, 80456, 82770, 84072, 94920, 96565, 98084, 100570, 105090, 110360, 115878, 120684, 122605, 140120, 140798, 147126, 150855, 154504, 165540, 193130, 196168, 201140, 210180, 211197, 231756, 241368, 245210, 281596, 289695, 294252, 301710, 311767, 331080, 351995, 367815, 386260, 402280, 420360, 422394, 463512, 490420, 563192, 579390, 588504, 603420, 623534, 703990, 735630, 772520, 844788, 935301, 980840, 1055985, 1158780, 1206840, 1247068, 1407980, 1471260, 1558835, 1689576, 1870602, 2111970, 2182369, 2317560, 2494136, 2815960, 2942520, 3117670, 3741204, 4223940, 4364738, 4676505, 6235340, 6547107, 7482408, 8447880, 8729476, 9353010, 10911845, 12470680, 13094214, 17458952, 18706020, 21823690, 26188428, 32735535, 37412040, 43647380, 52376856, 65471070, 87294760, 130942140, 261884280]

約数ペア:

[(1, 261884280), (2, 130942140), (3, 87294760), (4, 65471070), (5, 52376856), (6, 43647380), (7, 37412040), (8, 32735535), (10, 26188428), (12, 21823690), (14, 18706020), (15, 17458952), (20, 13094214), (21, 12470680), (24, 10911845), (28, 9353010), (30, 8729476), (31, 8447880), (35, 7482408), (40, 6547107), (42, 6235340), (56, 4676505), (60, 4364738), (62, 4223940), (70, 3741204), (84, 3117670), (89, 2942520), (93, 2815960), (105, 2494136), (113, 2317560), (120, 2182369), (124, 2111970), (140, 1870602), (155, 1689576), (168, 1558835), (178, 1471260), (186, 1407980), (210, 1247068), (217, 1206840), (226, 1158780), (248, 1055985), (267, 980840), (280, 935301), (310, 844788), (339, 772520), (356, 735630), (372, 703990), (420, 623534), (434, 603420), (445, 588504), (452, 579390), (465, 563192), (534, 490420), (565, 463512), (620, 422394), (623, 420360), (651, 402280), (678, 386260), (712, 367815), (744, 351995), (791, 331080), (840, 311767), (868, 301710), (890, 294252), (904, 289695), (930, 281596), (1068, 245210), (1085, 241368), (1130, 231756), (1240, 211197), (1246, 210180), (1302, 201140), (1335, 196168), (1356, 193130), (1582, 165540), (1695, 154504), (1736, 150855), (1780, 147126), (1860, 140798), (1869, 140120), (2136, 122605), (2170, 120684), (2260, 115878), (2373, 110360), (2492, 105090), (2604, 100570), (2670, 98084), (2712, 96565), (2759, 94920), (3115, 84072), (3164, 82770), (3255, 80456), (3390, 77252), (3503, 74760), (3560, 73563), (3720, 70399), (3738, 70060), (3955, 66216), (4340, 60342), (4520, 57939), (4746, 55180), (4984, 52545), (5208, 50285), (5340, 49042), (5518, 47460), (6230, 42036), (6328, 41385), (6510, 40228), (6780, 38626), (7006, 37380), (7476, 35030), (7910, 33108), (8277, 31640), (8680, 30171), (9345, 28024), (9492, 27590), (10057, 26040), (10509, 24920), (10680, 24521), (11036, 23730), (11865, 22072), (12460, 21018), (13020, 20114), (13560, 19313), (13795, 18984), (14012, 18690), (14952, 17515), (15820, 16554)]