20725432

素因数分解:

$2^3\times 7^4\times {\mathrm{13}}^1\times {\mathrm{83}}^1$

素因数の和:130

約数の個数: 80

約数和(自身を含む): 49409640

約数和(自身を除く): 28684208

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 83, 91, 98, 104, 166, 182, 196, 332, 343, 364, 392, 581, 637, 664, 686, 728, 1079, 1162, 1274, 1372, 2158, 2324, 2401, 2548, 2744, 4067, 4316, 4459, 4648, 4802, 5096, 7553, 8134, 8632, 8918, 9604, 15106, 16268, 17836, 19208, 28469, 30212, 31213, 32536, 35672, 52871, 56938, 60424, 62426, 105742, 113876, 124852, 199283, 211484, 227752, 249704, 370097, 398566, 422968, 740194, 797132, 1480388, 1594264, 2590679, 2960776, 5181358, 10362716, 20725432]

約数ペア:

[(1, 20725432), (2, 10362716), (4, 5181358), (7, 2960776), (8, 2590679), (13, 1594264), (14, 1480388), (26, 797132), (28, 740194), (49, 422968), (52, 398566), (56, 370097), (83, 249704), (91, 227752), (98, 211484), (104, 199283), (166, 124852), (182, 113876), (196, 105742), (332, 62426), (343, 60424), (364, 56938), (392, 52871), (581, 35672), (637, 32536), (664, 31213), (686, 30212), (728, 28469), (1079, 19208), (1162, 17836), (1274, 16268), (1372, 15106), (2158, 9604), (2324, 8918), (2401, 8632), (2548, 8134), (2744, 7553), (4067, 5096), (4316, 4802), (4459, 4648)]