19964682725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{757}}^1\times {\mathrm{4271}}^1$

素因数の和:5070

約数の個数: 48

約数和(自身を含む): 28107367680

約数和(自身を除く): 8142684955

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 475, 757, 1235, 3785, 4271, 6175, 9841, 14383, 18925, 21355, 49205, 55523, 71915, 81149, 106775, 186979, 246025, 277615, 359575, 405745, 934895, 1054937, 1388075, 2028725, 3233147, 4674475, 5274685, 16165735, 26373425, 42030911, 61429793, 80828675, 210154555, 307148965, 798587309, 1050772775, 1535744825, 3992936545, 19964682725]

約数ペア:

[(1, 19964682725), (5, 3992936545), (13, 1535744825), (19, 1050772775), (25, 798587309), (65, 307148965), (95, 210154555), (247, 80828675), (325, 61429793), (475, 42030911), (757, 26373425), (1235, 16165735), (3785, 5274685), (4271, 4674475), (6175, 3233147), (9841, 2028725), (14383, 1388075), (18925, 1054937), (21355, 934895), (49205, 405745), (55523, 359575), (71915, 277615), (81149, 246025), (106775, 186979)]