1989225784

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{24181}}^1$

素因数の和:24320

約数の個数: 64

約数和(自身を含む): 4631336640

約数和(自身を除く): 2642110856

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 113, 182, 226, 364, 452, 728, 791, 904, 1469, 1582, 2938, 3164, 5876, 6328, 10283, 11752, 20566, 24181, 41132, 48362, 82264, 96724, 169267, 193448, 314353, 338534, 628706, 677068, 1257412, 1354136, 2200471, 2514824, 2732453, 4400942, 5464906, 8801884, 10929812, 17603768, 19127171, 21859624, 35521889, 38254342, 71043778, 76508684, 142087556, 153017368, 248653223, 284175112, 497306446, 994612892, 1989225784]

約数ペア:

[(1, 1989225784), (2, 994612892), (4, 497306446), (7, 284175112), (8, 248653223), (13, 153017368), (14, 142087556), (26, 76508684), (28, 71043778), (52, 38254342), (56, 35521889), (91, 21859624), (104, 19127171), (113, 17603768), (182, 10929812), (226, 8801884), (364, 5464906), (452, 4400942), (728, 2732453), (791, 2514824), (904, 2200471), (1469, 1354136), (1582, 1257412), (2938, 677068), (3164, 628706), (5876, 338534), (6328, 314353), (10283, 193448), (11752, 169267), (20566, 96724), (24181, 82264), (41132, 48362)]