1640250720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{8969}}^1$

素因数の和:9117

約数の個数: 144

約数和(自身を含む): 5642058240

約数和(自身を除く): 4001807520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 127, 144, 160, 180, 240, 254, 288, 360, 381, 480, 508, 635, 720, 762, 1016, 1143, 1270, 1440, 1524, 1905, 2032, 2286, 2540, 3048, 3810, 4064, 4572, 5080, 5715, 6096, 7620, 8969, 9144, 10160, 11430, 12192, 15240, 17938, 18288, 20320, 22860, 26907, 30480, 35876, 36576, 44845, 45720, 53814, 60960, 71752, 80721, 89690, 91440, 107628, 134535, 143504, 161442, 179380, 182880, 215256, 269070, 287008, 322884, 358760, 403605, 430512, 538140, 645768, 717520, 807210, 861024, 1076280, 1139063, 1291536, 1435040, 1614420, 2152560, 2278126, 2583072, 3228840, 3417189, 4305120, 4556252, 5695315, 6457680, 6834378, 9112504, 10251567, 11390630, 12915360, 13668756, 17085945, 18225008, 20503134, 22781260, 27337512, 34171890, 36450016, 41006268, 45562520, 51257835, 54675024, 68343780, 82012536, 91125040, 102515670, 109350048, 136687560, 164025072, 182250080, 205031340, 273375120, 328050144, 410062680, 546750240, 820125360, 1640250720]

約数ペア:

[(1, 1640250720), (2, 820125360), (3, 546750240), (4, 410062680), (5, 328050144), (6, 273375120), (8, 205031340), (9, 182250080), (10, 164025072), (12, 136687560), (15, 109350048), (16, 102515670), (18, 91125040), (20, 82012536), (24, 68343780), (30, 54675024), (32, 51257835), (36, 45562520), (40, 41006268), (45, 36450016), (48, 34171890), (60, 27337512), (72, 22781260), (80, 20503134), (90, 18225008), (96, 17085945), (120, 13668756), (127, 12915360), (144, 11390630), (160, 10251567), (180, 9112504), (240, 6834378), (254, 6457680), (288, 5695315), (360, 4556252), (381, 4305120), (480, 3417189), (508, 3228840), (635, 2583072), (720, 2278126), (762, 2152560), (1016, 1614420), (1143, 1435040), (1270, 1291536), (1440, 1139063), (1524, 1076280), (1905, 861024), (2032, 807210), (2286, 717520), (2540, 645768), (3048, 538140), (3810, 430512), (4064, 403605), (4572, 358760), (5080, 322884), (5715, 287008), (6096, 269070), (7620, 215256), (8969, 182880), (9144, 179380), (10160, 161442), (11430, 143504), (12192, 134535), (15240, 107628), (17938, 91440), (18288, 89690), (20320, 80721), (22860, 71752), (26907, 60960), (30480, 53814), (35876, 45720), (36576, 44845)]