490959980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{32173}}^1$

素因数の和:32298

約数の個数: 48

約数和(自身を含む): 1189151040

約数和(自身を除く): 698191060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 2180, 3052, 3815, 7630, 15260, 32173, 64346, 128692, 160865, 225211, 321730, 450422, 643460, 900844, 1126055, 2252110, 3506857, 4504220, 7013714, 14027428, 17534285, 24547999, 35068570, 49095998, 70137140, 98191996, 122739995, 245479990, 490959980]

約数ペア:

[(1, 490959980), (2, 245479990), (4, 122739995), (5, 98191996), (7, 70137140), (10, 49095998), (14, 35068570), (20, 24547999), (28, 17534285), (35, 14027428), (70, 7013714), (109, 4504220), (140, 3506857), (218, 2252110), (436, 1126055), (545, 900844), (763, 643460), (1090, 450422), (1526, 321730), (2180, 225211), (3052, 160865), (3815, 128692), (7630, 64346), (15260, 32173)]