89487910

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:313

約数の個数: 64

約数和(自身を含む): 178200000

約数和(自身を除く): 88712090

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 95, 109, 145, 149, 190, 218, 290, 298, 545, 551, 745, 1090, 1102, 1490, 2071, 2755, 2831, 3161, 4142, 4321, 5510, 5662, 6322, 8642, 10355, 14155, 15805, 16241, 20710, 21605, 28310, 31610, 32482, 43210, 60059, 81205, 82099, 120118, 162410, 164198, 300295, 308579, 410495, 470989, 600590, 617158, 820990, 941978, 1542895, 2354945, 3085790, 4709890, 8948791, 17897582, 44743955, 89487910]

約数ペア:

[(1, 89487910), (2, 44743955), (5, 17897582), (10, 8948791), (19, 4709890), (29, 3085790), (38, 2354945), (58, 1542895), (95, 941978), (109, 820990), (145, 617158), (149, 600590), (190, 470989), (218, 410495), (290, 308579), (298, 300295), (545, 164198), (551, 162410), (745, 120118), (1090, 82099), (1102, 81205), (1490, 60059), (2071, 43210), (2755, 32482), (2831, 31610), (3161, 28310), (4142, 21605), (4321, 20710), (5510, 16241), (5662, 15805), (6322, 14155), (8642, 10355)]