80509975

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{823}}^1$

素因数の和:896

約数の個数: 48

約数和(自身を含む): 125880832

約数和(自身を除く): 45370857

約数列:

[1, 5, 7, 13, 25, 35, 43, 65, 91, 175, 215, 301, 325, 455, 559, 823, 1075, 1505, 2275, 2795, 3913, 4115, 5761, 7525, 10699, 13975, 19565, 20575, 28805, 35389, 53495, 74893, 97825, 144025, 176945, 247723, 267475, 374465, 460057, 884725, 1238615, 1872325, 2300285, 3220399, 6193075, 11501425, 16101995, 80509975]

約数ペア:

[(1, 80509975), (5, 16101995), (7, 11501425), (13, 6193075), (25, 3220399), (35, 2300285), (43, 1872325), (65, 1238615), (91, 884725), (175, 460057), (215, 374465), (301, 267475), (325, 247723), (455, 176945), (559, 144025), (823, 97825), (1075, 74893), (1505, 53495), (2275, 35389), (2795, 28805), (3913, 20575), (4115, 19565), (5761, 13975), (7525, 10699)]