639195440065

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2579}}^1\times {\mathrm{544717}}^1$

素因数の和:547321

約数の個数: 32

約数和(自身を含む): 944410279680

約数和(自身を除く): 305214839615

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 2579, 12895, 18053, 33527, 90265, 167635, 234689, 544717, 1173445, 2723585, 3813019, 7081321, 19065095, 35406605, 49569247, 247846235, 1404825143, 7024125715, 9833776001, 18262726859, 49168880005, 91313634295, 127839088013, 639195440065]

約数ペア:

[(1, 639195440065), (5, 127839088013), (7, 91313634295), (13, 49168880005), (35, 18262726859), (65, 9833776001), (91, 7024125715), (455, 1404825143), (2579, 247846235), (12895, 49569247), (18053, 35406605), (33527, 19065095), (90265, 7081321), (167635, 3813019), (234689, 2723585), (544717, 1173445)]