20827125

素因数分解:

$3^4\times 5^3\times {\mathrm{11}}^2\times {\mathrm{17}}^1$

素因数の和:66

約数の個数: 120

約数和(自身を含む): 45189144

約数和(自身を除く): 24362019

約数列:

[1, 3, 5, 9, 11, 15, 17, 25, 27, 33, 45, 51, 55, 75, 81, 85, 99, 121, 125, 135, 153, 165, 187, 225, 255, 275, 297, 363, 375, 405, 425, 459, 495, 561, 605, 675, 765, 825, 891, 935, 1089, 1125, 1275, 1375, 1377, 1485, 1683, 1815, 2025, 2057, 2125, 2295, 2475, 2805, 3025, 3267, 3375, 3825, 4125, 4455, 4675, 5049, 5445, 6171, 6375, 6885, 7425, 8415, 9075, 9801, 10125, 10285, 11475, 12375, 14025, 15125, 15147, 16335, 18513, 19125, 22275, 23375, 25245, 27225, 30855, 34425, 37125, 42075, 45375, 49005, 51425, 55539, 57375, 70125, 75735, 81675, 92565, 111375, 126225, 136125, 154275, 166617, 172125, 210375, 245025, 257125, 277695, 378675, 408375, 462825, 631125, 771375, 833085, 1225125, 1388475, 1893375, 2314125, 4165425, 6942375, 20827125]

約数ペア:

[(1, 20827125), (3, 6942375), (5, 4165425), (9, 2314125), (11, 1893375), (15, 1388475), (17, 1225125), (25, 833085), (27, 771375), (33, 631125), (45, 462825), (51, 408375), (55, 378675), (75, 277695), (81, 257125), (85, 245025), (99, 210375), (121, 172125), (125, 166617), (135, 154275), (153, 136125), (165, 126225), (187, 111375), (225, 92565), (255, 81675), (275, 75735), (297, 70125), (363, 57375), (375, 55539), (405, 51425), (425, 49005), (459, 45375), (495, 42075), (561, 37125), (605, 34425), (675, 30855), (765, 27225), (825, 25245), (891, 23375), (935, 22275), (1089, 19125), (1125, 18513), (1275, 16335), (1375, 15147), (1377, 15125), (1485, 14025), (1683, 12375), (1815, 11475), (2025, 10285), (2057, 10125), (2125, 9801), (2295, 9075), (2475, 8415), (2805, 7425), (3025, 6885), (3267, 6375), (3375, 6171), (3825, 5445), (4125, 5049), (4455, 4675)]