128798320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1811}}^1$

素因数の和:1958

約数の個数: 80

約数和(自身を含む): 345120768

約数和(自身を除く): 216322448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 127, 140, 254, 280, 508, 560, 635, 889, 1016, 1270, 1778, 1811, 2032, 2540, 3556, 3622, 4445, 5080, 7112, 7244, 8890, 9055, 10160, 12677, 14224, 14488, 17780, 18110, 25354, 28976, 35560, 36220, 50708, 63385, 71120, 72440, 101416, 126770, 144880, 202832, 229997, 253540, 459994, 507080, 919988, 1014160, 1149985, 1609979, 1839976, 2299970, 3219958, 3679952, 4599940, 6439916, 8049895, 9199880, 12879832, 16099790, 18399760, 25759664, 32199580, 64399160, 128798320]

約数ペア:

[(1, 128798320), (2, 64399160), (4, 32199580), (5, 25759664), (7, 18399760), (8, 16099790), (10, 12879832), (14, 9199880), (16, 8049895), (20, 6439916), (28, 4599940), (35, 3679952), (40, 3219958), (56, 2299970), (70, 1839976), (80, 1609979), (112, 1149985), (127, 1014160), (140, 919988), (254, 507080), (280, 459994), (508, 253540), (560, 229997), (635, 202832), (889, 144880), (1016, 126770), (1270, 101416), (1778, 72440), (1811, 71120), (2032, 63385), (2540, 50708), (3556, 36220), (3622, 35560), (4445, 28976), (5080, 25354), (7112, 18110), (7244, 17780), (8890, 14488), (9055, 14224), (10160, 12677)]