20222775

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^2\times {\mathrm{311}}^1$

素因数の和:361

約数の個数: 54

約数和(自身を含む): 38600952

約数和(自身を除く): 18378177

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 289, 311, 425, 765, 867, 933, 1275, 1445, 1555, 2601, 2799, 3825, 4335, 4665, 5287, 7225, 7775, 13005, 13995, 15861, 21675, 23325, 26435, 47583, 65025, 69975, 79305, 89879, 132175, 237915, 269637, 396525, 449395, 808911, 1189575, 1348185, 2246975, 4044555, 6740925, 20222775]

約数ペア:

[(1, 20222775), (3, 6740925), (5, 4044555), (9, 2246975), (15, 1348185), (17, 1189575), (25, 808911), (45, 449395), (51, 396525), (75, 269637), (85, 237915), (153, 132175), (225, 89879), (255, 79305), (289, 69975), (311, 65025), (425, 47583), (765, 26435), (867, 23325), (933, 21675), (1275, 15861), (1445, 13995), (1555, 13005), (2601, 7775), (2799, 7225), (3825, 5287), (4335, 4665)]