64719395

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{191}}^1\times {\mathrm{401}}^1$

素因数の和:623

約数の個数: 24

約数和(自身を含む): 84748032

約数和(自身を除く): 20028637

約数列:

[1, 5, 13, 65, 169, 191, 401, 845, 955, 2005, 2483, 5213, 12415, 26065, 32279, 67769, 76591, 161395, 338845, 382955, 995683, 4978415, 12943879, 64719395]

約数ペア:

[(1, 64719395), (5, 12943879), (13, 4978415), (65, 995683), (169, 382955), (191, 338845), (401, 161395), (845, 76591), (955, 67769), (2005, 32279), (2483, 26065), (5213, 12415)]