21947760

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{1129}}^1$

素因数の和:1157

約数の個数: 120

約数和(自身を含む): 76505520

約数和(自身を除く): 54557760

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, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 810, 972, 1080, 1129, 1215, 1296, 1620, 1944, 2160, 2258, 2430, 3240, 3387, 3888, 4516, 4860, 5645, 6480, 6774, 9032, 9720, 10161, 11290, 13548, 16935, 18064, 19440, 20322, 22580, 27096, 30483, 33870, 40644, 45160, 50805, 54192, 60966, 67740, 81288, 90320, 91449, 101610, 121932, 135480, 152415, 162576, 182898, 203220, 243864, 270960, 274347, 304830, 365796, 406440, 457245, 487728, 548694, 609660, 731592, 812880, 914490, 1097388, 1219320, 1371735, 1463184, 1828980, 2194776, 2438640, 2743470, 3657960, 4389552, 5486940, 7315920, 10973880, 21947760]

約数ペア:

[(1, 21947760), (2, 10973880), (3, 7315920), (4, 5486940), (5, 4389552), (6, 3657960), (8, 2743470), (9, 2438640), (10, 2194776), (12, 1828980), (15, 1463184), (16, 1371735), (18, 1219320), (20, 1097388), (24, 914490), (27, 812880), (30, 731592), (36, 609660), (40, 548694), (45, 487728), (48, 457245), (54, 406440), (60, 365796), (72, 304830), (80, 274347), (81, 270960), (90, 243864), (108, 203220), (120, 182898), (135, 162576), (144, 152415), (162, 135480), (180, 121932), (216, 101610), (240, 91449), (243, 90320), (270, 81288), (324, 67740), (360, 60966), (405, 54192), (432, 50805), (486, 45160), (540, 40644), (648, 33870), (720, 30483), (810, 27096), (972, 22580), (1080, 20322), (1129, 19440), (1215, 18064), (1296, 16935), (1620, 13548), (1944, 11290), (2160, 10161), (2258, 9720), (2430, 9032), (3240, 6774), (3387, 6480), (3888, 5645), (4516, 4860)]