19950480

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{229}}^1$

素因数の和:270

約数の個数: 180

約数和(自身を含む): 73966620

約数和(自身を除く): 54016140

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 121, 132, 144, 165, 176, 180, 198, 220, 229, 240, 242, 264, 330, 360, 363, 396, 440, 458, 484, 495, 528, 605, 660, 687, 720, 726, 792, 880, 916, 968, 990, 1089, 1145, 1210, 1320, 1374, 1452, 1584, 1815, 1832, 1936, 1980, 2061, 2178, 2290, 2420, 2519, 2640, 2748, 2904, 3435, 3630, 3664, 3960, 4122, 4356, 4580, 4840, 5038, 5445, 5496, 5808, 6870, 7260, 7557, 7920, 8244, 8712, 9160, 9680, 10076, 10305, 10890, 10992, 12595, 13740, 14520, 15114, 16488, 17424, 18320, 20152, 20610, 21780, 22671, 25190, 27480, 27709, 29040, 30228, 32976, 37785, 40304, 41220, 43560, 45342, 50380, 54960, 55418, 60456, 75570, 82440, 83127, 87120, 90684, 100760, 110836, 113355, 120912, 138545, 151140, 164880, 166254, 181368, 201520, 221672, 226710, 249381, 277090, 302280, 332508, 362736, 415635, 443344, 453420, 498762, 554180, 604560, 665016, 831270, 906840, 997524, 1108360, 1246905, 1330032, 1662540, 1813680, 1995048, 2216720, 2493810, 3325080, 3990096, 4987620, 6650160, 9975240, 19950480]

約数ペア:

[(1, 19950480), (2, 9975240), (3, 6650160), (4, 4987620), (5, 3990096), (6, 3325080), (8, 2493810), (9, 2216720), (10, 1995048), (11, 1813680), (12, 1662540), (15, 1330032), (16, 1246905), (18, 1108360), (20, 997524), (22, 906840), (24, 831270), (30, 665016), (33, 604560), (36, 554180), (40, 498762), (44, 453420), (45, 443344), (48, 415635), (55, 362736), (60, 332508), (66, 302280), (72, 277090), (80, 249381), (88, 226710), (90, 221672), (99, 201520), (110, 181368), (120, 166254), (121, 164880), (132, 151140), (144, 138545), (165, 120912), (176, 113355), (180, 110836), (198, 100760), (220, 90684), (229, 87120), (240, 83127), (242, 82440), (264, 75570), (330, 60456), (360, 55418), (363, 54960), (396, 50380), (440, 45342), (458, 43560), (484, 41220), (495, 40304), (528, 37785), (605, 32976), (660, 30228), (687, 29040), (720, 27709), (726, 27480), (792, 25190), (880, 22671), (916, 21780), (968, 20610), (990, 20152), (1089, 18320), (1145, 17424), (1210, 16488), (1320, 15114), (1374, 14520), (1452, 13740), (1584, 12595), (1815, 10992), (1832, 10890), (1936, 10305), (1980, 10076), (2061, 9680), (2178, 9160), (2290, 8712), (2420, 8244), (2519, 7920), (2640, 7557), (2748, 7260), (2904, 6870), (3435, 5808), (3630, 5496), (3664, 5445), (3960, 5038), (4122, 4840), (4356, 4580)]