638945955

素因数分解:

$3^3\times 5^1\times {\mathrm{1697}}^1\times {\mathrm{2789}}^1$

素因数の和:4500

約数の個数: 32

約数和(自身を含む): 1136980800

約数和(自身を除く): 498034845

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1697, 2789, 5091, 8367, 8485, 13945, 15273, 25101, 25455, 41835, 45819, 75303, 76365, 125505, 229095, 376515, 4732933, 14198799, 23664665, 42596397, 70993995, 127789191, 212981985, 638945955]

約数ペア:

[(1, 638945955), (3, 212981985), (5, 127789191), (9, 70993995), (15, 42596397), (27, 23664665), (45, 14198799), (135, 4732933), (1697, 376515), (2789, 229095), (5091, 125505), (8367, 76365), (8485, 75303), (13945, 45819), (15273, 41835), (25101, 25455)]