25686720

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{991}}^1$

素因数の和:1020

約数の個数: 140

約数和(自身を含む): 91464384

約数和(自身を除く): 65777664

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, 991, 1080, 1296, 1440, 1620, 1728, 1982, 2160, 2592, 2880, 2973, 3240, 3964, 4320, 4955, 5184, 5946, 6480, 7928, 8640, 8919, 9910, 11892, 12960, 14865, 15856, 17838, 19820, 23784, 25920, 26757, 29730, 31712, 35676, 39640, 44595, 47568, 53514, 59460, 63424, 71352, 79280, 80271, 89190, 95136, 107028, 118920, 133785, 142704, 158560, 160542, 178380, 190272, 214056, 237840, 267570, 285408, 317120, 321084, 356760, 401355, 428112, 475680, 535140, 570816, 642168, 713520, 802710, 856224, 951360, 1070280, 1284336, 1427040, 1605420, 1712448, 2140560, 2568672, 2854080, 3210840, 4281120, 5137344, 6421680, 8562240, 12843360, 25686720]

約数ペア:

[(1, 25686720), (2, 12843360), (3, 8562240), (4, 6421680), (5, 5137344), (6, 4281120), (8, 3210840), (9, 2854080), (10, 2568672), (12, 2140560), (15, 1712448), (16, 1605420), (18, 1427040), (20, 1284336), (24, 1070280), (27, 951360), (30, 856224), (32, 802710), (36, 713520), (40, 642168), (45, 570816), (48, 535140), (54, 475680), (60, 428112), (64, 401355), (72, 356760), (80, 321084), (81, 317120), (90, 285408), (96, 267570), (108, 237840), (120, 214056), (135, 190272), (144, 178380), (160, 160542), (162, 158560), (180, 142704), (192, 133785), (216, 118920), (240, 107028), (270, 95136), (288, 89190), (320, 80271), (324, 79280), (360, 71352), (405, 63424), (432, 59460), (480, 53514), (540, 47568), (576, 44595), (648, 39640), (720, 35676), (810, 31712), (864, 29730), (960, 26757), (991, 25920), (1080, 23784), (1296, 19820), (1440, 17838), (1620, 15856), (1728, 14865), (1982, 12960), (2160, 11892), (2592, 9910), (2880, 8919), (2973, 8640), (3240, 7928), (3964, 6480), (4320, 5946), (4955, 5184)]