81400550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{21143}}^1$

素因数の和:21173

約数の個数: 48

約数和(自身を含む): 188773632

約数和(自身を除く): 107373082

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 550, 770, 1925, 3850, 21143, 42286, 105715, 148001, 211430, 232573, 296002, 465146, 528575, 740005, 1057150, 1162865, 1480010, 1628011, 2325730, 3256022, 3700025, 5814325, 7400050, 8140055, 11628650, 16280110, 40700275, 81400550]

約数ペア:

[(1, 81400550), (2, 40700275), (5, 16280110), (7, 11628650), (10, 8140055), (11, 7400050), (14, 5814325), (22, 3700025), (25, 3256022), (35, 2325730), (50, 1628011), (55, 1480010), (70, 1162865), (77, 1057150), (110, 740005), (154, 528575), (175, 465146), (275, 296002), (350, 232573), (385, 211430), (550, 148001), (770, 105715), (1925, 42286), (3850, 21143)]