81772020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41299}}^1$

素因数の和:41325

約数の個数: 72

約数和(自身を含む): 270597600

約数和(自身を除く): 188825580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 41299, 82598, 123897, 165196, 206495, 247794, 371691, 412990, 454289, 495588, 619485, 743382, 825980, 908578, 1238970, 1362867, 1486764, 1817156, 1858455, 2271445, 2477940, 2725734, 3716910, 4088601, 4542890, 5451468, 6814335, 7433820, 8177202, 9085780, 13628670, 16354404, 20443005, 27257340, 40886010, 81772020]

約数ペア:

[(1, 81772020), (2, 40886010), (3, 27257340), (4, 20443005), (5, 16354404), (6, 13628670), (9, 9085780), (10, 8177202), (11, 7433820), (12, 6814335), (15, 5451468), (18, 4542890), (20, 4088601), (22, 3716910), (30, 2725734), (33, 2477940), (36, 2271445), (44, 1858455), (45, 1817156), (55, 1486764), (60, 1362867), (66, 1238970), (90, 908578), (99, 825980), (110, 743382), (132, 619485), (165, 495588), (180, 454289), (198, 412990), (220, 371691), (330, 247794), (396, 206495), (495, 165196), (660, 123897), (990, 82598), (1980, 41299)]