2049204920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{28477}}^1$

素因数の和:28752

約数の個数: 64

約数和(自身を含む): 5290073280

約数和(自身を除く): 3240868360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 257, 280, 514, 1028, 1285, 1799, 2056, 2570, 3598, 5140, 7196, 8995, 10280, 14392, 17990, 28477, 35980, 56954, 71960, 113908, 142385, 199339, 227816, 284770, 398678, 569540, 797356, 996695, 1139080, 1594712, 1993390, 3986780, 7318589, 7973560, 14637178, 29274356, 36592945, 51230123, 58548712, 73185890, 102460246, 146371780, 204920492, 256150615, 292743560, 409840984, 512301230, 1024602460, 2049204920]

約数ペア:

[(1, 2049204920), (2, 1024602460), (4, 512301230), (5, 409840984), (7, 292743560), (8, 256150615), (10, 204920492), (14, 146371780), (20, 102460246), (28, 73185890), (35, 58548712), (40, 51230123), (56, 36592945), (70, 29274356), (140, 14637178), (257, 7973560), (280, 7318589), (514, 3986780), (1028, 1993390), (1285, 1594712), (1799, 1139080), (2056, 996695), (2570, 797356), (3598, 569540), (5140, 398678), (7196, 284770), (8995, 227816), (10280, 199339), (14392, 142385), (17990, 113908), (28477, 71960), (35980, 56954)]