1890639520

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{1993}}^1$

素因数の和:2044

約数の個数: 216

約数和(自身を含む): 5714042292

約数和(自身を除く): 3823402772

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 121, 140, 154, 160, 176, 196, 220, 224, 242, 245, 280, 308, 352, 385, 392, 440, 484, 490, 539, 560, 605, 616, 770, 784, 847, 880, 968, 980, 1078, 1120, 1210, 1232, 1540, 1568, 1694, 1760, 1936, 1960, 1993, 2156, 2420, 2464, 2695, 3080, 3388, 3872, 3920, 3986, 4235, 4312, 4840, 5390, 5929, 6160, 6776, 7840, 7972, 8470, 8624, 9680, 9965, 10780, 11858, 12320, 13552, 13951, 15944, 16940, 17248, 19360, 19930, 21560, 21923, 23716, 27104, 27902, 29645, 31888, 33880, 39860, 43120, 43846, 47432, 55804, 59290, 63776, 67760, 69755, 79720, 86240, 87692, 94864, 97657, 109615, 111608, 118580, 135520, 139510, 153461, 159440, 175384, 189728, 195314, 219230, 223216, 237160, 241153, 279020, 306922, 318880, 350768, 390628, 438460, 446432, 474320, 482306, 488285, 558040, 613844, 701536, 767305, 781256, 876920, 948640, 964612, 976570, 1074227, 1116080, 1205765, 1227688, 1534610, 1562512, 1688071, 1753840, 1929224, 1953140, 2148454, 2232160, 2411530, 2455376, 3069220, 3125024, 3376142, 3507680, 3858448, 3906280, 4296908, 4823060, 4910752, 5371135, 6138440, 6752284, 7716896, 7812560, 8440355, 8593816, 9646120, 10742270, 11816497, 12276880, 13504568, 15625120, 16880710, 17187632, 19292240, 21484540, 23632994, 24553760, 27009136, 33761420, 34375264, 38584480, 42969080, 47265988, 54018272, 59082485, 67522840, 85938160, 94531976, 118164970, 135045680, 171876320, 189063952, 236329940, 270091360, 378127904, 472659880, 945319760, 1890639520]

約数ペア:

[(1, 1890639520), (2, 945319760), (4, 472659880), (5, 378127904), (7, 270091360), (8, 236329940), (10, 189063952), (11, 171876320), (14, 135045680), (16, 118164970), (20, 94531976), (22, 85938160), (28, 67522840), (32, 59082485), (35, 54018272), (40, 47265988), (44, 42969080), (49, 38584480), (55, 34375264), (56, 33761420), (70, 27009136), (77, 24553760), (80, 23632994), (88, 21484540), (98, 19292240), (110, 17187632), (112, 16880710), (121, 15625120), (140, 13504568), (154, 12276880), (160, 11816497), (176, 10742270), (196, 9646120), (220, 8593816), (224, 8440355), (242, 7812560), (245, 7716896), (280, 6752284), (308, 6138440), (352, 5371135), (385, 4910752), (392, 4823060), (440, 4296908), (484, 3906280), (490, 3858448), (539, 3507680), (560, 3376142), (605, 3125024), (616, 3069220), (770, 2455376), (784, 2411530), (847, 2232160), (880, 2148454), (968, 1953140), (980, 1929224), (1078, 1753840), (1120, 1688071), (1210, 1562512), (1232, 1534610), (1540, 1227688), (1568, 1205765), (1694, 1116080), (1760, 1074227), (1936, 976570), (1960, 964612), (1993, 948640), (2156, 876920), (2420, 781256), (2464, 767305), (2695, 701536), (3080, 613844), (3388, 558040), (3872, 488285), (3920, 482306), (3986, 474320), (4235, 446432), (4312, 438460), (4840, 390628), (5390, 350768), (5929, 318880), (6160, 306922), (6776, 279020), (7840, 241153), (7972, 237160), (8470, 223216), (8624, 219230), (9680, 195314), (9965, 189728), (10780, 175384), (11858, 159440), (12320, 153461), (13552, 139510), (13951, 135520), (15944, 118580), (16940, 111608), (17248, 109615), (19360, 97657), (19930, 94864), (21560, 87692), (21923, 86240), (23716, 79720), (27104, 69755), (27902, 67760), (29645, 63776), (31888, 59290), (33880, 55804), (39860, 47432), (43120, 43846)]