289042775

素因数分解:

$5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{541}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 425829888

約数和(自身を除く): 136787113

約数列:

[1, 5, 7, 25, 35, 43, 71, 175, 215, 301, 355, 497, 541, 1075, 1505, 1775, 2485, 2705, 3053, 3787, 7525, 12425, 13525, 15265, 18935, 21371, 23263, 38411, 76325, 94675, 106855, 116315, 162841, 192055, 268877, 534275, 581575, 814205, 960275, 1344385, 1651673, 4071025, 6721925, 8258365, 11561711, 41291825, 57808555, 289042775]

約数ペア:

[(1, 289042775), (5, 57808555), (7, 41291825), (25, 11561711), (35, 8258365), (43, 6721925), (71, 4071025), (175, 1651673), (215, 1344385), (301, 960275), (355, 814205), (497, 581575), (541, 534275), (1075, 268877), (1505, 192055), (1775, 162841), (2485, 116315), (2705, 106855), (3053, 94675), (3787, 76325), (7525, 38411), (12425, 23263), (13525, 21371), (15265, 18935)]