20488528

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{653}}^1$

素因数の和:751

約数の個数: 40

約数和(自身を含む): 41602248

約数和(自身を除く): 21113720

約数列:

[1, 2, 4, 8, 16, 37, 53, 74, 106, 148, 212, 296, 424, 592, 653, 848, 1306, 1961, 2612, 3922, 5224, 7844, 10448, 15688, 24161, 31376, 34609, 48322, 69218, 96644, 138436, 193288, 276872, 386576, 553744, 1280533, 2561066, 5122132, 10244264, 20488528]

約数ペア:

[(1, 20488528), (2, 10244264), (4, 5122132), (8, 2561066), (16, 1280533), (37, 553744), (53, 386576), (74, 276872), (106, 193288), (148, 138436), (212, 96644), (296, 69218), (424, 48322), (592, 34609), (653, 31376), (848, 24161), (1306, 15688), (1961, 10448), (2612, 7844), (3922, 5224)]