123217560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:290

約数の個数: 192

約数和(自身を含む): 422472960

約数和(自身を除く): 299255400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 61, 62, 72, 90, 93, 120, 122, 124, 155, 180, 181, 183, 186, 244, 248, 279, 305, 310, 360, 362, 366, 372, 465, 488, 543, 549, 558, 610, 620, 724, 732, 744, 905, 915, 930, 1086, 1098, 1116, 1220, 1240, 1395, 1448, 1464, 1629, 1810, 1830, 1860, 1891, 2172, 2196, 2232, 2440, 2715, 2745, 2790, 3258, 3620, 3660, 3720, 3782, 4344, 4392, 5430, 5490, 5580, 5611, 5673, 6516, 7240, 7320, 7564, 8145, 9455, 10860, 10980, 11041, 11160, 11222, 11346, 13032, 15128, 16290, 16833, 17019, 18910, 21720, 21960, 22082, 22444, 22692, 28055, 28365, 32580, 33123, 33666, 34038, 37820, 44164, 44888, 45384, 50499, 55205, 56110, 56730, 65160, 66246, 67332, 68076, 75640, 84165, 85095, 88328, 99369, 100998, 110410, 112220, 113460, 132492, 134664, 136152, 165615, 168330, 170190, 198738, 201996, 220820, 224440, 226920, 252495, 264984, 331230, 336660, 340380, 342271, 397476, 403992, 441640, 496845, 504990, 662460, 673320, 680760, 684542, 794952, 993690, 1009980, 1026813, 1324920, 1369084, 1711355, 1987380, 2019960, 2053626, 2738168, 3080439, 3422710, 3974760, 4107252, 5134065, 6160878, 6845420, 8214504, 10268130, 12321756, 13690840, 15402195, 20536260, 24643512, 30804390, 41072520, 61608780, 123217560]

約数ペア:

[(1, 123217560), (2, 61608780), (3, 41072520), (4, 30804390), (5, 24643512), (6, 20536260), (8, 15402195), (9, 13690840), (10, 12321756), (12, 10268130), (15, 8214504), (18, 6845420), (20, 6160878), (24, 5134065), (30, 4107252), (31, 3974760), (36, 3422710), (40, 3080439), (45, 2738168), (60, 2053626), (61, 2019960), (62, 1987380), (72, 1711355), (90, 1369084), (93, 1324920), (120, 1026813), (122, 1009980), (124, 993690), (155, 794952), (180, 684542), (181, 680760), (183, 673320), (186, 662460), (244, 504990), (248, 496845), (279, 441640), (305, 403992), (310, 397476), (360, 342271), (362, 340380), (366, 336660), (372, 331230), (465, 264984), (488, 252495), (543, 226920), (549, 224440), (558, 220820), (610, 201996), (620, 198738), (724, 170190), (732, 168330), (744, 165615), (905, 136152), (915, 134664), (930, 132492), (1086, 113460), (1098, 112220), (1116, 110410), (1220, 100998), (1240, 99369), (1395, 88328), (1448, 85095), (1464, 84165), (1629, 75640), (1810, 68076), (1830, 67332), (1860, 66246), (1891, 65160), (2172, 56730), (2196, 56110), (2232, 55205), (2440, 50499), (2715, 45384), (2745, 44888), (2790, 44164), (3258, 37820), (3620, 34038), (3660, 33666), (3720, 33123), (3782, 32580), (4344, 28365), (4392, 28055), (5430, 22692), (5490, 22444), (5580, 22082), (5611, 21960), (5673, 21720), (6516, 18910), (7240, 17019), (7320, 16833), (7564, 16290), (8145, 15128), (9455, 13032), (10860, 11346), (10980, 11222), (11041, 11160)]