78840815

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 103680000

約数和(自身を除く): 24839185

約数列:

[1, 5, 17, 59, 79, 85, 199, 295, 395, 995, 1003, 1343, 3383, 4661, 5015, 6715, 11741, 15721, 16915, 23305, 58705, 78605, 79237, 199597, 267257, 396185, 927539, 997985, 1336285, 4637695, 15768163, 78840815]

約数ペア:

[(1, 78840815), (5, 15768163), (17, 4637695), (59, 1336285), (79, 997985), (85, 927539), (199, 396185), (295, 267257), (395, 199597), (995, 79237), (1003, 78605), (1343, 58705), (3383, 23305), (4661, 16915), (5015, 15721), (6715, 11741)]