19985064

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:171

約数の個数: 128

約数和(自身を含む): 59460480

約数和(自身を除く): 39475416

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 17, 22, 24, 33, 34, 44, 51, 61, 66, 68, 73, 88, 102, 122, 132, 136, 146, 183, 187, 204, 219, 244, 264, 292, 366, 374, 408, 438, 488, 561, 584, 671, 732, 748, 803, 876, 1037, 1122, 1241, 1342, 1464, 1496, 1606, 1752, 2013, 2074, 2244, 2409, 2482, 2684, 3111, 3212, 3723, 4026, 4148, 4453, 4488, 4818, 4964, 5368, 6222, 6424, 7446, 8052, 8296, 8906, 9636, 9928, 11407, 12444, 13359, 13651, 14892, 16104, 17812, 19272, 22814, 24888, 26718, 27302, 29784, 34221, 35624, 40953, 45628, 48983, 53436, 54604, 68442, 75701, 81906, 91256, 97966, 106872, 109208, 136884, 146949, 151402, 163812, 195932, 227103, 273768, 293898, 302804, 327624, 391864, 454206, 587796, 605608, 832711, 908412, 1175592, 1665422, 1816824, 2498133, 3330844, 4996266, 6661688, 9992532, 19985064]

約数ペア:

[(1, 19985064), (2, 9992532), (3, 6661688), (4, 4996266), (6, 3330844), (8, 2498133), (11, 1816824), (12, 1665422), (17, 1175592), (22, 908412), (24, 832711), (33, 605608), (34, 587796), (44, 454206), (51, 391864), (61, 327624), (66, 302804), (68, 293898), (73, 273768), (88, 227103), (102, 195932), (122, 163812), (132, 151402), (136, 146949), (146, 136884), (183, 109208), (187, 106872), (204, 97966), (219, 91256), (244, 81906), (264, 75701), (292, 68442), (366, 54604), (374, 53436), (408, 48983), (438, 45628), (488, 40953), (561, 35624), (584, 34221), (671, 29784), (732, 27302), (748, 26718), (803, 24888), (876, 22814), (1037, 19272), (1122, 17812), (1241, 16104), (1342, 14892), (1464, 13651), (1496, 13359), (1606, 12444), (1752, 11407), (2013, 9928), (2074, 9636), (2244, 8906), (2409, 8296), (2482, 8052), (2684, 7446), (3111, 6424), (3212, 6222), (3723, 5368), (4026, 4964), (4148, 4818), (4453, 4488)]