261372160

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{941}}^1$

素因数の和:1000

約数の個数: 144

約数和(自身を含む): 739372032

約数和(自身を除く): 477999872

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 256, 280, 310, 320, 434, 448, 496, 560, 620, 640, 868, 896, 941, 992, 1085, 1120, 1240, 1280, 1736, 1792, 1882, 1984, 2170, 2240, 2480, 3472, 3764, 3968, 4340, 4480, 4705, 4960, 6587, 6944, 7528, 7936, 8680, 8960, 9410, 9920, 13174, 13888, 15056, 17360, 18820, 19840, 26348, 27776, 29171, 30112, 32935, 34720, 37640, 39680, 52696, 55552, 58342, 60224, 65870, 69440, 75280, 105392, 116684, 120448, 131740, 138880, 145855, 150560, 204197, 210784, 233368, 240896, 263480, 277760, 291710, 301120, 408394, 421568, 466736, 526960, 583420, 602240, 816788, 843136, 933472, 1020985, 1053920, 1166840, 1204480, 1633576, 1686272, 1866944, 2041970, 2107840, 2333680, 3267152, 3733888, 4083940, 4215680, 4667360, 6534304, 7467776, 8167880, 8431360, 9334720, 13068608, 16335760, 18669440, 26137216, 32671520, 37338880, 52274432, 65343040, 130686080, 261372160]

約数ペア:

[(1, 261372160), (2, 130686080), (4, 65343040), (5, 52274432), (7, 37338880), (8, 32671520), (10, 26137216), (14, 18669440), (16, 16335760), (20, 13068608), (28, 9334720), (31, 8431360), (32, 8167880), (35, 7467776), (40, 6534304), (56, 4667360), (62, 4215680), (64, 4083940), (70, 3733888), (80, 3267152), (112, 2333680), (124, 2107840), (128, 2041970), (140, 1866944), (155, 1686272), (160, 1633576), (217, 1204480), (224, 1166840), (248, 1053920), (256, 1020985), (280, 933472), (310, 843136), (320, 816788), (434, 602240), (448, 583420), (496, 526960), (560, 466736), (620, 421568), (640, 408394), (868, 301120), (896, 291710), (941, 277760), (992, 263480), (1085, 240896), (1120, 233368), (1240, 210784), (1280, 204197), (1736, 150560), (1792, 145855), (1882, 138880), (1984, 131740), (2170, 120448), (2240, 116684), (2480, 105392), (3472, 75280), (3764, 69440), (3968, 65870), (4340, 60224), (4480, 58342), (4705, 55552), (4960, 52696), (6587, 39680), (6944, 37640), (7528, 34720), (7936, 32935), (8680, 30112), (8960, 29171), (9410, 27776), (9920, 26348), (13174, 19840), (13888, 18820), (15056, 17360)]