39646880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:431

約数の個数: 144

約数和(自身を含む): 117641160

約数和(自身を除く): 77994280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 364, 389, 392, 416, 455, 490, 520, 560, 637, 728, 778, 784, 910, 980, 1040, 1120, 1274, 1456, 1556, 1568, 1820, 1945, 1960, 2080, 2548, 2723, 2912, 3112, 3185, 3640, 3890, 3920, 5057, 5096, 5446, 6224, 6370, 7280, 7780, 7840, 10114, 10192, 10892, 12448, 12740, 13615, 14560, 15560, 19061, 20228, 20384, 21784, 25285, 25480, 27230, 31120, 35399, 38122, 40456, 43568, 50570, 50960, 54460, 62240, 70798, 76244, 80912, 87136, 95305, 101140, 101920, 108920, 141596, 152488, 161824, 176995, 190610, 202280, 217840, 247793, 283192, 304976, 353990, 381220, 404560, 435680, 495586, 566384, 609952, 707980, 762440, 809120, 991172, 1132768, 1238965, 1415960, 1524880, 1982344, 2477930, 2831920, 3049760, 3964688, 4955860, 5663840, 7929376, 9911720, 19823440, 39646880]

約数ペア:

[(1, 39646880), (2, 19823440), (4, 9911720), (5, 7929376), (7, 5663840), (8, 4955860), (10, 3964688), (13, 3049760), (14, 2831920), (16, 2477930), (20, 1982344), (26, 1524880), (28, 1415960), (32, 1238965), (35, 1132768), (40, 991172), (49, 809120), (52, 762440), (56, 707980), (65, 609952), (70, 566384), (80, 495586), (91, 435680), (98, 404560), (104, 381220), (112, 353990), (130, 304976), (140, 283192), (160, 247793), (182, 217840), (196, 202280), (208, 190610), (224, 176995), (245, 161824), (260, 152488), (280, 141596), (364, 108920), (389, 101920), (392, 101140), (416, 95305), (455, 87136), (490, 80912), (520, 76244), (560, 70798), (637, 62240), (728, 54460), (778, 50960), (784, 50570), (910, 43568), (980, 40456), (1040, 38122), (1120, 35399), (1274, 31120), (1456, 27230), (1556, 25480), (1568, 25285), (1820, 21784), (1945, 20384), (1960, 20228), (2080, 19061), (2548, 15560), (2723, 14560), (2912, 13615), (3112, 12740), (3185, 12448), (3640, 10892), (3890, 10192), (3920, 10114), (5057, 7840), (5096, 7780), (5446, 7280), (6224, 6370)]