857136280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21407}}^1$

素因数の和:21449

約数の個数: 128

約数和(自身を含む): 2589511680

約数和(自身を除く): 1732375400

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 715, 728, 770, 910, 1001, 1144, 1430, 1540, 1820, 2002, 2860, 3080, 3640, 4004, 5005, 5720, 8008, 10010, 20020, 21407, 40040, 42814, 85628, 107035, 149849, 171256, 214070, 235477, 278291, 299698, 428140, 470954, 556582, 599396, 749245, 856280, 941908, 1113164, 1177385, 1198792, 1391455, 1498490, 1648339, 1883816, 1948037, 2226328, 2354770, 2782910, 2996980, 3061201, 3296678, 3896074, 4709540, 5565820, 5993960, 6122402, 6593356, 7792148, 8241695, 9419080, 9740185, 11131640, 12244804, 13186712, 15306005, 15584296, 16483390, 19480370, 21428407, 24489608, 30612010, 32966780, 38960740, 42856814, 61224020, 65933560, 77921480, 85713628, 107142035, 122448040, 171427256, 214284070, 428568140, 857136280]

約数ペア:

[(1, 857136280), (2, 428568140), (4, 214284070), (5, 171427256), (7, 122448040), (8, 107142035), (10, 85713628), (11, 77921480), (13, 65933560), (14, 61224020), (20, 42856814), (22, 38960740), (26, 32966780), (28, 30612010), (35, 24489608), (40, 21428407), (44, 19480370), (52, 16483390), (55, 15584296), (56, 15306005), (65, 13186712), (70, 12244804), (77, 11131640), (88, 9740185), (91, 9419080), (104, 8241695), (110, 7792148), (130, 6593356), (140, 6122402), (143, 5993960), (154, 5565820), (182, 4709540), (220, 3896074), (260, 3296678), (280, 3061201), (286, 2996980), (308, 2782910), (364, 2354770), (385, 2226328), (440, 1948037), (455, 1883816), (520, 1648339), (572, 1498490), (616, 1391455), (715, 1198792), (728, 1177385), (770, 1113164), (910, 941908), (1001, 856280), (1144, 749245), (1430, 599396), (1540, 556582), (1820, 470954), (2002, 428140), (2860, 299698), (3080, 278291), (3640, 235477), (4004, 214070), (5005, 171256), (5720, 149849), (8008, 107035), (10010, 85628), (20020, 42814), (21407, 40040)]