20867625

素因数分解:

$3^6\times 5^3\times {\mathrm{229}}^1$

素因数の和:262

約数の個数: 56

約数和(自身を含む): 39216840

約数和(自身を除く): 18349215

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 225, 229, 243, 375, 405, 675, 687, 729, 1125, 1145, 1215, 2025, 2061, 3375, 3435, 3645, 5725, 6075, 6183, 10125, 10305, 17175, 18225, 18549, 28625, 30375, 30915, 51525, 55647, 85875, 91125, 92745, 154575, 166941, 257625, 278235, 463725, 772875, 834705, 1391175, 2318625, 4173525, 6955875, 20867625]

約数ペア:

[(1, 20867625), (3, 6955875), (5, 4173525), (9, 2318625), (15, 1391175), (25, 834705), (27, 772875), (45, 463725), (75, 278235), (81, 257625), (125, 166941), (135, 154575), (225, 92745), (229, 91125), (243, 85875), (375, 55647), (405, 51525), (675, 30915), (687, 30375), (729, 28625), (1125, 18549), (1145, 18225), (1215, 17175), (2025, 10305), (2061, 10125), (3375, 6183), (3435, 6075), (3645, 5725)]