28859040

素因数分解:

$2^5\times 3^2\times 5^1\times 7^2\times {\mathrm{409}}^1$

素因数の和:444

約数の個数: 216

約数和(自身を含む): 114840180

約数和(自身を除く): 85981140

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 160, 168, 180, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 336, 360, 392, 409, 420, 441, 480, 490, 504, 560, 588, 630, 672, 720, 735, 784, 818, 840, 882, 980, 1008, 1120, 1176, 1227, 1260, 1440, 1470, 1568, 1636, 1680, 1764, 1960, 2016, 2045, 2205, 2352, 2454, 2520, 2863, 2940, 3272, 3360, 3528, 3681, 3920, 4090, 4410, 4704, 4908, 5040, 5726, 5880, 6135, 6544, 7056, 7362, 7840, 8180, 8589, 8820, 9816, 10080, 11452, 11760, 12270, 13088, 14112, 14315, 14724, 16360, 17178, 17640, 18405, 19632, 20041, 22904, 23520, 24540, 25767, 28630, 29448, 32720, 34356, 35280, 36810, 39264, 40082, 42945, 45808, 49080, 51534, 57260, 58896, 60123, 65440, 68712, 70560, 73620, 80164, 85890, 91616, 98160, 100205, 103068, 114520, 117792, 120246, 128835, 137424, 147240, 160328, 171780, 180369, 196320, 200410, 206136, 229040, 240492, 257670, 274848, 294480, 300615, 320656, 343560, 360738, 400820, 412272, 458080, 480984, 515340, 588960, 601230, 641312, 687120, 721476, 801640, 824544, 901845, 961968, 1030680, 1202460, 1374240, 1442952, 1603280, 1803690, 1923936, 2061360, 2404920, 2885904, 3206560, 3607380, 4122720, 4809840, 5771808, 7214760, 9619680, 14429520, 28859040]

約数ペア:

[(1, 28859040), (2, 14429520), (3, 9619680), (4, 7214760), (5, 5771808), (6, 4809840), (7, 4122720), (8, 3607380), (9, 3206560), (10, 2885904), (12, 2404920), (14, 2061360), (15, 1923936), (16, 1803690), (18, 1603280), (20, 1442952), (21, 1374240), (24, 1202460), (28, 1030680), (30, 961968), (32, 901845), (35, 824544), (36, 801640), (40, 721476), (42, 687120), (45, 641312), (48, 601230), (49, 588960), (56, 515340), (60, 480984), (63, 458080), (70, 412272), (72, 400820), (80, 360738), (84, 343560), (90, 320656), (96, 300615), (98, 294480), (105, 274848), (112, 257670), (120, 240492), (126, 229040), (140, 206136), (144, 200410), (147, 196320), (160, 180369), (168, 171780), (180, 160328), (196, 147240), (210, 137424), (224, 128835), (240, 120246), (245, 117792), (252, 114520), (280, 103068), (288, 100205), (294, 98160), (315, 91616), (336, 85890), (360, 80164), (392, 73620), (409, 70560), (420, 68712), (441, 65440), (480, 60123), (490, 58896), (504, 57260), (560, 51534), (588, 49080), (630, 45808), (672, 42945), (720, 40082), (735, 39264), (784, 36810), (818, 35280), (840, 34356), (882, 32720), (980, 29448), (1008, 28630), (1120, 25767), (1176, 24540), (1227, 23520), (1260, 22904), (1440, 20041), (1470, 19632), (1568, 18405), (1636, 17640), (1680, 17178), (1764, 16360), (1960, 14724), (2016, 14315), (2045, 14112), (2205, 13088), (2352, 12270), (2454, 11760), (2520, 11452), (2863, 10080), (2940, 9816), (3272, 8820), (3360, 8589), (3528, 8180), (3681, 7840), (3920, 7362), (4090, 7056), (4410, 6544), (4704, 6135), (4908, 5880), (5040, 5726)]