19680225

素因数分解:

$3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{4951}}^1$

素因数の和:5017

約数の個数: 24

約数和(自身を含む): 33158592

約数和(自身を除く): 13478367

約数列:

[1, 3, 5, 15, 25, 53, 75, 159, 265, 795, 1325, 3975, 4951, 14853, 24755, 74265, 123775, 262403, 371325, 787209, 1312015, 3936045, 6560075, 19680225]

約数ペア:

[(1, 19680225), (3, 6560075), (5, 3936045), (15, 1312015), (25, 787209), (53, 371325), (75, 262403), (159, 123775), (265, 74265), (795, 24755), (1325, 14853), (3975, 4951)]