180750220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{1019}}^1$

素因数の和:1223

約数の個数: 72

約数和(自身を含む): 444422160

約数和(自身を除く): 263671940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 181, 196, 245, 362, 490, 724, 905, 980, 1019, 1267, 1810, 2038, 2534, 3620, 4076, 5068, 5095, 6335, 7133, 8869, 10190, 12670, 14266, 17738, 20380, 25340, 28532, 35476, 35665, 44345, 49931, 71330, 88690, 99862, 142660, 177380, 184439, 199724, 249655, 368878, 499310, 737756, 922195, 998620, 1291073, 1844390, 2582146, 3688780, 5164292, 6455365, 9037511, 12910730, 18075022, 25821460, 36150044, 45187555, 90375110, 180750220]

約数ペア:

[(1, 180750220), (2, 90375110), (4, 45187555), (5, 36150044), (7, 25821460), (10, 18075022), (14, 12910730), (20, 9037511), (28, 6455365), (35, 5164292), (49, 3688780), (70, 2582146), (98, 1844390), (140, 1291073), (181, 998620), (196, 922195), (245, 737756), (362, 499310), (490, 368878), (724, 249655), (905, 199724), (980, 184439), (1019, 177380), (1267, 142660), (1810, 99862), (2038, 88690), (2534, 71330), (3620, 49931), (4076, 44345), (5068, 35665), (5095, 35476), (6335, 28532), (7133, 25340), (8869, 20380), (10190, 17738), (12670, 14266)]