20155875

素因数分解:

$3^1\times 5^3\times {\mathrm{59}}^1\times {\mathrm{911}}^1$

素因数の和:988

約数の個数: 32

約数和(自身を含む): 34145280

約数和(自身を除く): 13989405

約数列:

[1, 3, 5, 15, 25, 59, 75, 125, 177, 295, 375, 885, 911, 1475, 2733, 4425, 4555, 7375, 13665, 22125, 22775, 53749, 68325, 113875, 161247, 268745, 341625, 806235, 1343725, 4031175, 6718625, 20155875]

約数ペア:

[(1, 20155875), (3, 6718625), (5, 4031175), (15, 1343725), (25, 806235), (59, 341625), (75, 268745), (125, 161247), (177, 113875), (295, 68325), (375, 53749), (885, 22775), (911, 22125), (1475, 13665), (2733, 7375), (4425, 4555)]