321265880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{617819}}^1$

素因数の和:617843

約数の個数: 32

約数和(自身を含む): 778453200

約数和(自身を除く): 457187320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 617819, 1235638, 2471276, 3089095, 4942552, 6178190, 8031647, 12356380, 16063294, 24712760, 32126588, 40158235, 64253176, 80316470, 160632940, 321265880]

約数ペア:

[(1, 321265880), (2, 160632940), (4, 80316470), (5, 64253176), (8, 40158235), (10, 32126588), (13, 24712760), (20, 16063294), (26, 12356380), (40, 8031647), (52, 6178190), (65, 4942552), (104, 3089095), (130, 2471276), (260, 1235638), (520, 617819)]