19507878

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:243

約数の個数: 80

約数和(自身を含む): 48177360

約数和(自身を除く): 28669482

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 59, 78, 81, 117, 118, 157, 162, 177, 234, 314, 351, 354, 471, 531, 702, 767, 942, 1053, 1062, 1413, 1534, 1593, 2041, 2106, 2301, 2826, 3186, 4082, 4239, 4602, 4779, 6123, 6903, 8478, 9263, 9558, 12246, 12717, 13806, 18369, 18526, 20709, 25434, 27789, 36738, 41418, 55107, 55578, 62127, 83367, 110214, 120419, 124254, 165321, 166734, 240838, 250101, 330642, 361257, 500202, 722514, 750303, 1083771, 1500606, 2167542, 3251313, 6502626, 9753939, 19507878]

約数ペア:

[(1, 19507878), (2, 9753939), (3, 6502626), (6, 3251313), (9, 2167542), (13, 1500606), (18, 1083771), (26, 750303), (27, 722514), (39, 500202), (54, 361257), (59, 330642), (78, 250101), (81, 240838), (117, 166734), (118, 165321), (157, 124254), (162, 120419), (177, 110214), (234, 83367), (314, 62127), (351, 55578), (354, 55107), (471, 41418), (531, 36738), (702, 27789), (767, 25434), (942, 20709), (1053, 18526), (1062, 18369), (1413, 13806), (1534, 12717), (1593, 12246), (2041, 9558), (2106, 9263), (2301, 8478), (2826, 6903), (3186, 6123), (4082, 4779), (4239, 4602)]