140721920

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:290

約数の個数: 144

約数和(自身を含む): 370863360

約数和(自身を除く): 230141440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 32, 34, 40, 58, 64, 68, 80, 85, 116, 128, 136, 145, 160, 170, 223, 232, 256, 272, 290, 320, 340, 446, 464, 493, 544, 580, 640, 680, 892, 928, 986, 1088, 1115, 1160, 1280, 1360, 1784, 1856, 1972, 2176, 2230, 2320, 2465, 2720, 3568, 3712, 3791, 3944, 4352, 4460, 4640, 4930, 5440, 6467, 7136, 7424, 7582, 7888, 8920, 9280, 9860, 10880, 12934, 14272, 15164, 15776, 17840, 18560, 18955, 19720, 21760, 25868, 28544, 30328, 31552, 32335, 35680, 37120, 37910, 39440, 51736, 57088, 60656, 63104, 64670, 71360, 75820, 78880, 103472, 109939, 121312, 126208, 129340, 142720, 151640, 157760, 206944, 219878, 242624, 258680, 285440, 303280, 315520, 413888, 439756, 485248, 517360, 549695, 606560, 631040, 827776, 879512, 970496, 1034720, 1099390, 1213120, 1655552, 1759024, 2069440, 2198780, 2426240, 3518048, 4138880, 4397560, 4852480, 7036096, 8277760, 8795120, 14072192, 17590240, 28144384, 35180480, 70360960, 140721920]

約数ペア:

[(1, 140721920), (2, 70360960), (4, 35180480), (5, 28144384), (8, 17590240), (10, 14072192), (16, 8795120), (17, 8277760), (20, 7036096), (29, 4852480), (32, 4397560), (34, 4138880), (40, 3518048), (58, 2426240), (64, 2198780), (68, 2069440), (80, 1759024), (85, 1655552), (116, 1213120), (128, 1099390), (136, 1034720), (145, 970496), (160, 879512), (170, 827776), (223, 631040), (232, 606560), (256, 549695), (272, 517360), (290, 485248), (320, 439756), (340, 413888), (446, 315520), (464, 303280), (493, 285440), (544, 258680), (580, 242624), (640, 219878), (680, 206944), (892, 157760), (928, 151640), (986, 142720), (1088, 129340), (1115, 126208), (1160, 121312), (1280, 109939), (1360, 103472), (1784, 78880), (1856, 75820), (1972, 71360), (2176, 64670), (2230, 63104), (2320, 60656), (2465, 57088), (2720, 51736), (3568, 39440), (3712, 37910), (3791, 37120), (3944, 35680), (4352, 32335), (4460, 31552), (4640, 30328), (4930, 28544), (5440, 25868), (6467, 21760), (7136, 19720), (7424, 18955), (7582, 18560), (7888, 17840), (8920, 15776), (9280, 15164), (9860, 14272), (10880, 12934)]