77991815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{307}}^1$

素因数の和:503

約数の個数: 32

約数和(自身を含む): 106444800

約数和(自身を除く): 28452985

約数列:

[1, 5, 11, 31, 55, 149, 155, 307, 341, 745, 1535, 1639, 1705, 3377, 4619, 8195, 9517, 16885, 23095, 45743, 47585, 50809, 104687, 228715, 254045, 503173, 523435, 1418033, 2515865, 7090165, 15598363, 77991815]

約数ペア:

[(1, 77991815), (5, 15598363), (11, 7090165), (31, 2515865), (55, 1418033), (149, 523435), (155, 503173), (307, 254045), (341, 228715), (745, 104687), (1535, 50809), (1639, 47585), (1705, 45743), (3377, 23095), (4619, 16885), (8195, 9517)]