20515235616

素因数分解:

$2^5\times 3^2\times {\mathrm{439}}^1\times {\mathrm{162263}}^1$

素因数の和:162718

約数の個数: 72

約数和(自身を含む): 58473455040

約数和(自身を除く): 37958219424

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288, 439, 878, 1317, 1756, 2634, 3512, 3951, 5268, 7024, 7902, 10536, 14048, 15804, 21072, 31608, 42144, 63216, 126432, 162263, 324526, 486789, 649052, 973578, 1298104, 1460367, 1947156, 2596208, 2920734, 3894312, 5192416, 5841468, 7788624, 11682936, 15577248, 23365872, 46731744, 71233457, 142466914, 213700371, 284933828, 427400742, 569867656, 641101113, 854801484, 1139735312, 1282202226, 1709602968, 2279470624, 2564404452, 3419205936, 5128808904, 6838411872, 10257617808, 20515235616]

約数ペア:

[(1, 20515235616), (2, 10257617808), (3, 6838411872), (4, 5128808904), (6, 3419205936), (8, 2564404452), (9, 2279470624), (12, 1709602968), (16, 1282202226), (18, 1139735312), (24, 854801484), (32, 641101113), (36, 569867656), (48, 427400742), (72, 284933828), (96, 213700371), (144, 142466914), (288, 71233457), (439, 46731744), (878, 23365872), (1317, 15577248), (1756, 11682936), (2634, 7788624), (3512, 5841468), (3951, 5192416), (5268, 3894312), (7024, 2920734), (7902, 2596208), (10536, 1947156), (14048, 1460367), (15804, 1298104), (21072, 973578), (31608, 649052), (42144, 486789), (63216, 324526), (126432, 162263)]