816790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:184

約数の個数: 32

約数和(自身を含む): 1624896

約数和(自身を除く): 808106

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 103, 122, 130, 206, 305, 515, 610, 793, 1030, 1339, 1586, 2678, 3965, 6283, 6695, 7930, 12566, 13390, 31415, 62830, 81679, 163358, 408395, 816790]

約数ペア:

[(1, 816790), (2, 408395), (5, 163358), (10, 81679), (13, 62830), (26, 31415), (61, 13390), (65, 12566), (103, 7930), (122, 6695), (130, 6283), (206, 3965), (305, 2678), (515, 1586), (610, 1339), (793, 1030)]