18977504

素因数分解:

$2^5\times 7^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:70

約数の個数: 120

約数和(自身を含む): 49409640

約数和(自身を除く): 30432136

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 32, 38, 49, 52, 56, 76, 91, 98, 104, 112, 133, 152, 182, 196, 208, 224, 247, 266, 304, 343, 364, 392, 416, 494, 532, 608, 637, 686, 728, 784, 931, 988, 1064, 1274, 1372, 1456, 1568, 1729, 1862, 1976, 2128, 2401, 2548, 2744, 2912, 3458, 3724, 3952, 4256, 4459, 4802, 5096, 5488, 6517, 6916, 7448, 7904, 8918, 9604, 10192, 10976, 12103, 13034, 13832, 14896, 17836, 19208, 20384, 24206, 26068, 27664, 29792, 31213, 35672, 38416, 45619, 48412, 52136, 55328, 62426, 71344, 76832, 84721, 91238, 96824, 104272, 124852, 142688, 169442, 182476, 193648, 208544, 249704, 338884, 364952, 387296, 499408, 593047, 677768, 729904, 998816, 1186094, 1355536, 1459808, 2372188, 2711072, 4744376, 9488752, 18977504]

約数ペア:

[(1, 18977504), (2, 9488752), (4, 4744376), (7, 2711072), (8, 2372188), (13, 1459808), (14, 1355536), (16, 1186094), (19, 998816), (26, 729904), (28, 677768), (32, 593047), (38, 499408), (49, 387296), (52, 364952), (56, 338884), (76, 249704), (91, 208544), (98, 193648), (104, 182476), (112, 169442), (133, 142688), (152, 124852), (182, 104272), (196, 96824), (208, 91238), (224, 84721), (247, 76832), (266, 71344), (304, 62426), (343, 55328), (364, 52136), (392, 48412), (416, 45619), (494, 38416), (532, 35672), (608, 31213), (637, 29792), (686, 27664), (728, 26068), (784, 24206), (931, 20384), (988, 19208), (1064, 17836), (1274, 14896), (1372, 13832), (1456, 13034), (1568, 12103), (1729, 10976), (1862, 10192), (1976, 9604), (2128, 8918), (2401, 7904), (2548, 7448), (2744, 6916), (2912, 6517), (3458, 5488), (3724, 5096), (3952, 4802), (4256, 4459)]