20784480

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:133

約数の個数: 192

約数和(自身を含む): 71850240

約数和(自身を除く): 51065760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 43, 48, 53, 57, 60, 76, 80, 86, 95, 96, 106, 114, 120, 129, 152, 159, 160, 172, 190, 212, 215, 228, 240, 258, 265, 285, 304, 318, 344, 380, 424, 430, 456, 480, 516, 530, 570, 608, 636, 645, 688, 760, 795, 817, 848, 860, 912, 1007, 1032, 1060, 1140, 1272, 1290, 1376, 1520, 1590, 1634, 1696, 1720, 1824, 2014, 2064, 2120, 2279, 2280, 2451, 2544, 2580, 3021, 3040, 3180, 3268, 3440, 4028, 4085, 4128, 4240, 4558, 4560, 4902, 5035, 5088, 5160, 6042, 6360, 6536, 6837, 6880, 8056, 8170, 8480, 9116, 9120, 9804, 10070, 10320, 11395, 12084, 12255, 12720, 13072, 13674, 15105, 16112, 16340, 18232, 19608, 20140, 20640, 22790, 24168, 24510, 25440, 26144, 27348, 30210, 32224, 32680, 34185, 36464, 39216, 40280, 43301, 45580, 48336, 49020, 54696, 60420, 65360, 68370, 72928, 78432, 80560, 86602, 91160, 96672, 98040, 109392, 120840, 129903, 130720, 136740, 161120, 173204, 182320, 196080, 216505, 218784, 241680, 259806, 273480, 346408, 364640, 392160, 433010, 483360, 519612, 546960, 649515, 692816, 866020, 1039224, 1093920, 1299030, 1385632, 1732040, 2078448, 2598060, 3464080, 4156896, 5196120, 6928160, 10392240, 20784480]

約数ペア:

[(1, 20784480), (2, 10392240), (3, 6928160), (4, 5196120), (5, 4156896), (6, 3464080), (8, 2598060), (10, 2078448), (12, 1732040), (15, 1385632), (16, 1299030), (19, 1093920), (20, 1039224), (24, 866020), (30, 692816), (32, 649515), (38, 546960), (40, 519612), (43, 483360), (48, 433010), (53, 392160), (57, 364640), (60, 346408), (76, 273480), (80, 259806), (86, 241680), (95, 218784), (96, 216505), (106, 196080), (114, 182320), (120, 173204), (129, 161120), (152, 136740), (159, 130720), (160, 129903), (172, 120840), (190, 109392), (212, 98040), (215, 96672), (228, 91160), (240, 86602), (258, 80560), (265, 78432), (285, 72928), (304, 68370), (318, 65360), (344, 60420), (380, 54696), (424, 49020), (430, 48336), (456, 45580), (480, 43301), (516, 40280), (530, 39216), (570, 36464), (608, 34185), (636, 32680), (645, 32224), (688, 30210), (760, 27348), (795, 26144), (817, 25440), (848, 24510), (860, 24168), (912, 22790), (1007, 20640), (1032, 20140), (1060, 19608), (1140, 18232), (1272, 16340), (1290, 16112), (1376, 15105), (1520, 13674), (1590, 13072), (1634, 12720), (1696, 12255), (1720, 12084), (1824, 11395), (2014, 10320), (2064, 10070), (2120, 9804), (2279, 9120), (2280, 9116), (2451, 8480), (2544, 8170), (2580, 8056), (3021, 6880), (3040, 6837), (3180, 6536), (3268, 6360), (3440, 6042), (4028, 5160), (4085, 5088), (4128, 5035), (4240, 4902), (4558, 4560)]