20709075

素因数分解:

$3^1\times 5^2\times {\mathrm{419}}^1\times {\mathrm{659}}^1$

素因数の和:1091

約数の個数: 24

約数和(自身を含む): 34372800

約数和(自身を除く): 13663725

約数列:

[1, 3, 5, 15, 25, 75, 419, 659, 1257, 1977, 2095, 3295, 6285, 9885, 10475, 16475, 31425, 49425, 276121, 828363, 1380605, 4141815, 6903025, 20709075]

約数ペア:

[(1, 20709075), (3, 6903025), (5, 4141815), (15, 1380605), (25, 828363), (75, 276121), (419, 49425), (659, 31425), (1257, 16475), (1977, 10475), (2095, 9885), (3295, 6285)]