1639585920

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{121993}}^1$

素因数の和:122022

約数の個数: 128

約数和(自身を含む): 5972826240

約数和(自身を除く): 4333240320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6720, 13440, 121993, 243986, 365979, 487972, 609965, 731958, 853951, 975944, 1219930, 1463916, 1707902, 1829895, 1951888, 2439860, 2561853, 2927832, 3415804, 3659790, 3903776, 4269755, 4879720, 5123706, 5855664, 6831608, 7319580, 7807552, 8539510, 9759440, 10247412, 11711328, 12809265, 13663216, 14639160, 15615104, 17079020, 19518880, 20494824, 23422656, 25618530, 27326432, 29278320, 34158040, 39037760, 40989648, 46845312, 51237060, 54652864, 58556640, 68316080, 78075520, 81979296, 102474120, 109305728, 117113280, 136632160, 163958592, 204948240, 234226560, 273264320, 327917184, 409896480, 546528640, 819792960, 1639585920]

約数ペア:

[(1, 1639585920), (2, 819792960), (3, 546528640), (4, 409896480), (5, 327917184), (6, 273264320), (7, 234226560), (8, 204948240), (10, 163958592), (12, 136632160), (14, 117113280), (15, 109305728), (16, 102474120), (20, 81979296), (21, 78075520), (24, 68316080), (28, 58556640), (30, 54652864), (32, 51237060), (35, 46845312), (40, 40989648), (42, 39037760), (48, 34158040), (56, 29278320), (60, 27326432), (64, 25618530), (70, 23422656), (80, 20494824), (84, 19518880), (96, 17079020), (105, 15615104), (112, 14639160), (120, 13663216), (128, 12809265), (140, 11711328), (160, 10247412), (168, 9759440), (192, 8539510), (210, 7807552), (224, 7319580), (240, 6831608), (280, 5855664), (320, 5123706), (336, 4879720), (384, 4269755), (420, 3903776), (448, 3659790), (480, 3415804), (560, 2927832), (640, 2561853), (672, 2439860), (840, 1951888), (896, 1829895), (960, 1707902), (1120, 1463916), (1344, 1219930), (1680, 975944), (1920, 853951), (2240, 731958), (2688, 609965), (3360, 487972), (4480, 365979), (6720, 243986), (13440, 121993)]