256666320

素因数分解:

$2^4\times 3^9\times 5^1\times {\mathrm{163}}^1$

素因数の和:203

約数の個数: 200

約数和(自身を含む): 900600096

約数和(自身を除く): 643933776

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 163, 180, 216, 240, 243, 270, 324, 326, 360, 405, 432, 486, 489, 540, 648, 652, 720, 729, 810, 815, 972, 978, 1080, 1215, 1296, 1304, 1458, 1467, 1620, 1630, 1944, 1956, 2160, 2187, 2430, 2445, 2608, 2916, 2934, 3240, 3260, 3645, 3888, 3912, 4374, 4401, 4860, 4890, 5832, 5868, 6480, 6520, 6561, 7290, 7335, 7824, 8748, 8802, 9720, 9780, 10935, 11664, 11736, 13040, 13122, 13203, 14580, 14670, 17496, 17604, 19440, 19560, 19683, 21870, 22005, 23472, 26244, 26406, 29160, 29340, 32805, 34992, 35208, 39120, 39366, 39609, 43740, 44010, 52488, 52812, 58320, 58680, 65610, 66015, 70416, 78732, 79218, 87480, 88020, 98415, 104976, 105624, 117360, 118827, 131220, 132030, 157464, 158436, 174960, 176040, 196830, 198045, 211248, 237654, 262440, 264060, 314928, 316872, 352080, 356481, 393660, 396090, 475308, 524880, 528120, 594135, 633744, 712962, 787320, 792180, 950616, 1056240, 1069443, 1188270, 1425924, 1574640, 1584360, 1782405, 1901232, 2138886, 2376540, 2851848, 3168720, 3208329, 3564810, 4277772, 4753080, 5347215, 5703696, 6416658, 7129620, 8555544, 9506160, 10694430, 12833316, 14259240, 16041645, 17111088, 21388860, 25666632, 28518480, 32083290, 42777720, 51333264, 64166580, 85555440, 128333160, 256666320]

約数ペア:

[(1, 256666320), (2, 128333160), (3, 85555440), (4, 64166580), (5, 51333264), (6, 42777720), (8, 32083290), (9, 28518480), (10, 25666632), (12, 21388860), (15, 17111088), (16, 16041645), (18, 14259240), (20, 12833316), (24, 10694430), (27, 9506160), (30, 8555544), (36, 7129620), (40, 6416658), (45, 5703696), (48, 5347215), (54, 4753080), (60, 4277772), (72, 3564810), (80, 3208329), (81, 3168720), (90, 2851848), (108, 2376540), (120, 2138886), (135, 1901232), (144, 1782405), (162, 1584360), (163, 1574640), (180, 1425924), (216, 1188270), (240, 1069443), (243, 1056240), (270, 950616), (324, 792180), (326, 787320), (360, 712962), (405, 633744), (432, 594135), (486, 528120), (489, 524880), (540, 475308), (648, 396090), (652, 393660), (720, 356481), (729, 352080), (810, 316872), (815, 314928), (972, 264060), (978, 262440), (1080, 237654), (1215, 211248), (1296, 198045), (1304, 196830), (1458, 176040), (1467, 174960), (1620, 158436), (1630, 157464), (1944, 132030), (1956, 131220), (2160, 118827), (2187, 117360), (2430, 105624), (2445, 104976), (2608, 98415), (2916, 88020), (2934, 87480), (3240, 79218), (3260, 78732), (3645, 70416), (3888, 66015), (3912, 65610), (4374, 58680), (4401, 58320), (4860, 52812), (4890, 52488), (5832, 44010), (5868, 43740), (6480, 39609), (6520, 39366), (6561, 39120), (7290, 35208), (7335, 34992), (7824, 32805), (8748, 29340), (8802, 29160), (9720, 26406), (9780, 26244), (10935, 23472), (11664, 22005), (11736, 21870), (13040, 19683), (13122, 19560), (13203, 19440), (14580, 17604), (14670, 17496)]