1780451525

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{359}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 2386454400

約数和(自身を除く): 606002875

約数列:

[1, 5, 19, 25, 53, 95, 197, 265, 359, 475, 985, 1007, 1325, 1795, 3743, 4925, 5035, 6821, 8975, 10441, 18715, 19027, 25175, 34105, 52205, 70723, 93575, 95135, 170525, 198379, 261025, 353615, 361513, 475675, 991895, 1343737, 1768075, 1807565, 3748319, 4959475, 6718685, 9037825, 18741595, 33593425, 71218061, 93707975, 356090305, 1780451525]

約数ペア:

[(1, 1780451525), (5, 356090305), (19, 93707975), (25, 71218061), (53, 33593425), (95, 18741595), (197, 9037825), (265, 6718685), (359, 4959475), (475, 3748319), (985, 1807565), (1007, 1768075), (1325, 1343737), (1795, 991895), (3743, 475675), (4925, 361513), (5035, 353615), (6821, 261025), (8975, 198379), (10441, 170525), (18715, 95135), (19027, 93575), (25175, 70723), (34105, 52205)]