20112557725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{433}}^1\times {\mathrm{1091}}^1$

素因数の和:1678

約数の個数: 48

約数和(自身を含む): 27150387264

約数和(自身を除く): 7037829539

約数列:

[1, 5, 13, 25, 65, 131, 325, 433, 655, 1091, 1703, 2165, 3275, 5455, 5629, 8515, 10825, 14183, 27275, 28145, 42575, 56723, 70915, 140725, 142921, 283615, 354575, 472403, 714605, 737399, 1418075, 1857973, 2362015, 3573025, 3686995, 6141239, 9289865, 11810075, 18434975, 30706195, 46449325, 61884793, 153530975, 309423965, 804502309, 1547119825, 4022511545, 20112557725]

約数ペア:

[(1, 20112557725), (5, 4022511545), (13, 1547119825), (25, 804502309), (65, 309423965), (131, 153530975), (325, 61884793), (433, 46449325), (655, 30706195), (1091, 18434975), (1703, 11810075), (2165, 9289865), (3275, 6141239), (5455, 3686995), (5629, 3573025), (8515, 2362015), (10825, 1857973), (14183, 1418075), (27275, 737399), (28145, 714605), (42575, 472403), (56723, 354575), (70915, 283615), (140725, 142921)]