20755616

素因数分解:

$2^5\times 7^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:123

約数の個数: 96

約数和(自身を含む): 49996800

約数和(自身を除く): 29241184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 49, 56, 61, 62, 98, 112, 122, 124, 196, 217, 224, 244, 248, 343, 392, 427, 434, 488, 496, 686, 784, 854, 868, 976, 992, 1372, 1519, 1568, 1708, 1736, 1891, 1952, 2744, 2989, 3038, 3416, 3472, 3782, 5488, 5978, 6076, 6832, 6944, 7564, 10633, 10976, 11956, 12152, 13237, 13664, 15128, 20923, 21266, 23912, 24304, 26474, 30256, 41846, 42532, 47824, 48608, 52948, 60512, 83692, 85064, 92659, 95648, 105896, 167384, 170128, 185318, 211792, 334768, 340256, 370636, 423584, 648613, 669536, 741272, 1297226, 1482544, 2594452, 2965088, 5188904, 10377808, 20755616]

約数ペア:

[(1, 20755616), (2, 10377808), (4, 5188904), (7, 2965088), (8, 2594452), (14, 1482544), (16, 1297226), (28, 741272), (31, 669536), (32, 648613), (49, 423584), (56, 370636), (61, 340256), (62, 334768), (98, 211792), (112, 185318), (122, 170128), (124, 167384), (196, 105896), (217, 95648), (224, 92659), (244, 85064), (248, 83692), (343, 60512), (392, 52948), (427, 48608), (434, 47824), (488, 42532), (496, 41846), (686, 30256), (784, 26474), (854, 24304), (868, 23912), (976, 21266), (992, 20923), (1372, 15128), (1519, 13664), (1568, 13237), (1708, 12152), (1736, 11956), (1891, 10976), (1952, 10633), (2744, 7564), (2989, 6944), (3038, 6832), (3416, 6076), (3472, 5978), (3782, 5488)]