18719792

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:107

約数の個数: 120

約数和(自身を含む): 47925504

約数和(自身を除く): 29205712

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 43, 46, 52, 56, 86, 91, 92, 104, 112, 161, 169, 172, 182, 184, 208, 299, 301, 322, 338, 344, 364, 368, 559, 598, 602, 644, 676, 688, 728, 989, 1118, 1183, 1196, 1204, 1288, 1352, 1456, 1978, 2093, 2236, 2366, 2392, 2408, 2576, 2704, 3887, 3913, 3956, 4186, 4472, 4732, 4784, 4816, 6923, 7267, 7774, 7826, 7912, 8372, 8944, 9464, 12857, 13846, 14534, 15548, 15652, 15824, 16744, 18928, 25714, 27209, 27692, 29068, 31096, 31304, 33488, 50869, 51428, 54418, 55384, 58136, 62192, 62608, 89999, 101738, 102856, 108836, 110768, 116272, 167141, 179998, 203476, 205712, 217672, 334282, 359996, 406952, 435344, 668564, 719992, 813904, 1169987, 1337128, 1439984, 2339974, 2674256, 4679948, 9359896, 18719792]

約数ペア:

[(1, 18719792), (2, 9359896), (4, 4679948), (7, 2674256), (8, 2339974), (13, 1439984), (14, 1337128), (16, 1169987), (23, 813904), (26, 719992), (28, 668564), (43, 435344), (46, 406952), (52, 359996), (56, 334282), (86, 217672), (91, 205712), (92, 203476), (104, 179998), (112, 167141), (161, 116272), (169, 110768), (172, 108836), (182, 102856), (184, 101738), (208, 89999), (299, 62608), (301, 62192), (322, 58136), (338, 55384), (344, 54418), (364, 51428), (368, 50869), (559, 33488), (598, 31304), (602, 31096), (644, 29068), (676, 27692), (688, 27209), (728, 25714), (989, 18928), (1118, 16744), (1183, 15824), (1196, 15652), (1204, 15548), (1288, 14534), (1352, 13846), (1456, 12857), (1978, 9464), (2093, 8944), (2236, 8372), (2366, 7912), (2392, 7826), (2408, 7774), (2576, 7267), (2704, 6923), (3887, 4816), (3913, 4784), (3956, 4732), (4186, 4472)]