81055584

素因数分解:

$2^5\times 3^2\times {\mathrm{431}}^1\times {\mathrm{653}}^1$

素因数の和:1100

約数の個数: 72

約数和(自身を含む): 231390432

約数和(自身を除く): 150334848

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288, 431, 653, 862, 1293, 1306, 1724, 1959, 2586, 2612, 3448, 3879, 3918, 5172, 5224, 5877, 6896, 7758, 7836, 10344, 10448, 11754, 13792, 15516, 15672, 20688, 20896, 23508, 31032, 31344, 41376, 47016, 62064, 62688, 94032, 124128, 188064, 281443, 562886, 844329, 1125772, 1688658, 2251544, 2532987, 3377316, 4503088, 5065974, 6754632, 9006176, 10131948, 13509264, 20263896, 27018528, 40527792, 81055584]

約数ペア:

[(1, 81055584), (2, 40527792), (3, 27018528), (4, 20263896), (6, 13509264), (8, 10131948), (9, 9006176), (12, 6754632), (16, 5065974), (18, 4503088), (24, 3377316), (32, 2532987), (36, 2251544), (48, 1688658), (72, 1125772), (96, 844329), (144, 562886), (288, 281443), (431, 188064), (653, 124128), (862, 94032), (1293, 62688), (1306, 62064), (1724, 47016), (1959, 41376), (2586, 31344), (2612, 31032), (3448, 23508), (3879, 20896), (3918, 20688), (5172, 15672), (5224, 15516), (5877, 13792), (6896, 11754), (7758, 10448), (7836, 10344)]