28262925

素因数分解:

$3^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{821}}^1$

素因数の和:860

約数の個数: 60

約数和(自身を含む): 55499796

約数和(自身を除く): 27236871

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 81, 85, 135, 153, 225, 255, 405, 425, 459, 675, 765, 821, 1275, 1377, 2025, 2295, 2463, 3825, 4105, 6885, 7389, 11475, 12315, 13957, 20525, 22167, 34425, 36945, 41871, 61575, 66501, 69785, 110835, 125613, 184725, 209355, 332505, 348925, 376839, 554175, 628065, 1046775, 1130517, 1662525, 1884195, 3140325, 5652585, 9420975, 28262925]

約数ペア:

[(1, 28262925), (3, 9420975), (5, 5652585), (9, 3140325), (15, 1884195), (17, 1662525), (25, 1130517), (27, 1046775), (45, 628065), (51, 554175), (75, 376839), (81, 348925), (85, 332505), (135, 209355), (153, 184725), (225, 125613), (255, 110835), (405, 69785), (425, 66501), (459, 61575), (675, 41871), (765, 36945), (821, 34425), (1275, 22167), (1377, 20525), (2025, 13957), (2295, 12315), (2463, 11475), (3825, 7389), (4105, 6885)]