20638875

素因数分解:

$3^1\times 5^3\times {\mathrm{47}}^1\times {\mathrm{1171}}^1$

素因数の和:1236

約数の個数: 32

約数和(自身を含む): 35103744

約数和(自身を除く): 14464869

約数列:

[1, 3, 5, 15, 25, 47, 75, 125, 141, 235, 375, 705, 1171, 1175, 3513, 3525, 5855, 5875, 17565, 17625, 29275, 55037, 87825, 146375, 165111, 275185, 439125, 825555, 1375925, 4127775, 6879625, 20638875]

約数ペア:

[(1, 20638875), (3, 6879625), (5, 4127775), (15, 1375925), (25, 825555), (47, 439125), (75, 275185), (125, 165111), (141, 146375), (235, 87825), (375, 55037), (705, 29275), (1171, 17625), (1175, 17565), (3513, 5875), (3525, 5855)]