280775680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:146

約数の個数: 176

約数和(自身を含む): 731024640

約数和(自身を除く): 450248960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 32, 40, 58, 61, 62, 64, 80, 116, 122, 124, 128, 145, 155, 160, 232, 244, 248, 256, 290, 305, 310, 320, 464, 488, 496, 512, 580, 610, 620, 640, 899, 928, 976, 992, 1024, 1160, 1220, 1240, 1280, 1769, 1798, 1856, 1891, 1952, 1984, 2320, 2440, 2480, 2560, 3538, 3596, 3712, 3782, 3904, 3968, 4495, 4640, 4880, 4960, 5120, 7076, 7192, 7424, 7564, 7808, 7936, 8845, 8990, 9280, 9455, 9760, 9920, 14152, 14384, 14848, 15128, 15616, 15872, 17690, 17980, 18560, 18910, 19520, 19840, 28304, 28768, 29696, 30256, 31232, 31744, 35380, 35960, 37120, 37820, 39040, 39680, 54839, 56608, 57536, 60512, 62464, 70760, 71920, 74240, 75640, 78080, 79360, 109678, 113216, 115072, 121024, 141520, 143840, 148480, 151280, 156160, 158720, 219356, 226432, 230144, 242048, 274195, 283040, 287680, 302560, 312320, 438712, 452864, 460288, 484096, 548390, 566080, 575360, 605120, 877424, 905728, 920576, 968192, 1096780, 1132160, 1150720, 1210240, 1754848, 1811456, 1936384, 2193560, 2264320, 2301440, 2420480, 3509696, 4387120, 4528640, 4602880, 4840960, 7019392, 8774240, 9057280, 9681920, 14038784, 17548480, 28077568, 35096960, 56155136, 70193920, 140387840, 280775680]

約数ペア:

[(1, 280775680), (2, 140387840), (4, 70193920), (5, 56155136), (8, 35096960), (10, 28077568), (16, 17548480), (20, 14038784), (29, 9681920), (31, 9057280), (32, 8774240), (40, 7019392), (58, 4840960), (61, 4602880), (62, 4528640), (64, 4387120), (80, 3509696), (116, 2420480), (122, 2301440), (124, 2264320), (128, 2193560), (145, 1936384), (155, 1811456), (160, 1754848), (232, 1210240), (244, 1150720), (248, 1132160), (256, 1096780), (290, 968192), (305, 920576), (310, 905728), (320, 877424), (464, 605120), (488, 575360), (496, 566080), (512, 548390), (580, 484096), (610, 460288), (620, 452864), (640, 438712), (899, 312320), (928, 302560), (976, 287680), (992, 283040), (1024, 274195), (1160, 242048), (1220, 230144), (1240, 226432), (1280, 219356), (1769, 158720), (1798, 156160), (1856, 151280), (1891, 148480), (1952, 143840), (1984, 141520), (2320, 121024), (2440, 115072), (2480, 113216), (2560, 109678), (3538, 79360), (3596, 78080), (3712, 75640), (3782, 74240), (3904, 71920), (3968, 70760), (4495, 62464), (4640, 60512), (4880, 57536), (4960, 56608), (5120, 54839), (7076, 39680), (7192, 39040), (7424, 37820), (7564, 37120), (7808, 35960), (7936, 35380), (8845, 31744), (8990, 31232), (9280, 30256), (9455, 29696), (9760, 28768), (9920, 28304), (14152, 19840), (14384, 19520), (14848, 18910), (15128, 18560), (15616, 17980), (15872, 17690)]