68921280

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{2659}}^1$

素因数の和:2688

約数の個数: 140

約数和(自身を含む): 245257320

約数和(自身を除く): 176336040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 192, 216, 240, 270, 288, 320, 324, 360, 405, 432, 480, 540, 576, 648, 720, 810, 864, 960, 1080, 1296, 1440, 1620, 1728, 2160, 2592, 2659, 2880, 3240, 4320, 5184, 5318, 6480, 7977, 8640, 10636, 12960, 13295, 15954, 21272, 23931, 25920, 26590, 31908, 39885, 42544, 47862, 53180, 63816, 71793, 79770, 85088, 95724, 106360, 119655, 127632, 143586, 159540, 170176, 191448, 212720, 215379, 239310, 255264, 287172, 319080, 358965, 382896, 425440, 430758, 478620, 510528, 574344, 638160, 717930, 765792, 850880, 861516, 957240, 1076895, 1148688, 1276320, 1435860, 1531584, 1723032, 1914480, 2153790, 2297376, 2552640, 2871720, 3446064, 3828960, 4307580, 4594752, 5743440, 6892128, 7657920, 8615160, 11486880, 13784256, 17230320, 22973760, 34460640, 68921280]

約数ペア:

[(1, 68921280), (2, 34460640), (3, 22973760), (4, 17230320), (5, 13784256), (6, 11486880), (8, 8615160), (9, 7657920), (10, 6892128), (12, 5743440), (15, 4594752), (16, 4307580), (18, 3828960), (20, 3446064), (24, 2871720), (27, 2552640), (30, 2297376), (32, 2153790), (36, 1914480), (40, 1723032), (45, 1531584), (48, 1435860), (54, 1276320), (60, 1148688), (64, 1076895), (72, 957240), (80, 861516), (81, 850880), (90, 765792), (96, 717930), (108, 638160), (120, 574344), (135, 510528), (144, 478620), (160, 430758), (162, 425440), (180, 382896), (192, 358965), (216, 319080), (240, 287172), (270, 255264), (288, 239310), (320, 215379), (324, 212720), (360, 191448), (405, 170176), (432, 159540), (480, 143586), (540, 127632), (576, 119655), (648, 106360), (720, 95724), (810, 85088), (864, 79770), (960, 71793), (1080, 63816), (1296, 53180), (1440, 47862), (1620, 42544), (1728, 39885), (2160, 31908), (2592, 26590), (2659, 25920), (2880, 23931), (3240, 21272), (4320, 15954), (5184, 13295), (5318, 12960), (6480, 10636), (7977, 8640)]