20921472720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{1279}}^1\times {\mathrm{7573}}^1$

素因数の和:8874

約数の個数: 160

約数和(自身を含む): 72128716800

約数和(自身を除く): 51207244080

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, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 1279, 2160, 2558, 3837, 5116, 6395, 7573, 7674, 10232, 11511, 12790, 15146, 15348, 19185, 20464, 22719, 23022, 25580, 30292, 30696, 34533, 37865, 38370, 45438, 46044, 51160, 57555, 60584, 61392, 68157, 69066, 75730, 76740, 90876, 92088, 102320, 113595, 115110, 121168, 136314, 138132, 151460, 153480, 172665, 181752, 184176, 204471, 227190, 230220, 272628, 276264, 302920, 306960, 340785, 345330, 363504, 408942, 454380, 460440, 545256, 552528, 605840, 681570, 690660, 817884, 908760, 920880, 1022355, 1090512, 1363140, 1381320, 1635768, 1817520, 2044710, 2726280, 2762640, 3271536, 4089420, 5452560, 8178840, 9685867, 16357680, 19371734, 29057601, 38743468, 48429335, 58115202, 77486936, 87172803, 96858670, 116230404, 145288005, 154973872, 174345606, 193717340, 232460808, 261518409, 290576010, 348691212, 387434680, 435864015, 464921616, 523036818, 581152020, 697382424, 774869360, 871728030, 1046073636, 1162304040, 1307592045, 1394764848, 1743456060, 2092147272, 2324608080, 2615184090, 3486912120, 4184294544, 5230368180, 6973824240, 10460736360, 20921472720]

約数ペア:

[(1, 20921472720), (2, 10460736360), (3, 6973824240), (4, 5230368180), (5, 4184294544), (6, 3486912120), (8, 2615184090), (9, 2324608080), (10, 2092147272), (12, 1743456060), (15, 1394764848), (16, 1307592045), (18, 1162304040), (20, 1046073636), (24, 871728030), (27, 774869360), (30, 697382424), (36, 581152020), (40, 523036818), (45, 464921616), (48, 435864015), (54, 387434680), (60, 348691212), (72, 290576010), (80, 261518409), (90, 232460808), (108, 193717340), (120, 174345606), (135, 154973872), (144, 145288005), (180, 116230404), (216, 96858670), (240, 87172803), (270, 77486936), (360, 58115202), (432, 48429335), (540, 38743468), (720, 29057601), (1080, 19371734), (1279, 16357680), (2160, 9685867), (2558, 8178840), (3837, 5452560), (5116, 4089420), (6395, 3271536), (7573, 2762640), (7674, 2726280), (10232, 2044710), (11511, 1817520), (12790, 1635768), (15146, 1381320), (15348, 1363140), (19185, 1090512), (20464, 1022355), (22719, 920880), (23022, 908760), (25580, 817884), (30292, 690660), (30696, 681570), (34533, 605840), (37865, 552528), (38370, 545256), (45438, 460440), (46044, 454380), (51160, 408942), (57555, 363504), (60584, 345330), (61392, 340785), (68157, 306960), (69066, 302920), (75730, 276264), (76740, 272628), (90876, 230220), (92088, 227190), (102320, 204471), (113595, 184176), (115110, 181752), (121168, 172665), (136314, 153480), (138132, 151460)]