121720688

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{367}}^1\times {\mathrm{1091}}^1$

素因数の和:1485

約数の個数: 40

約数和(自身を含む): 249150720

約数和(自身を除く): 127430032

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 367, 734, 1091, 1468, 2182, 2936, 4364, 5872, 6973, 8728, 13946, 17456, 20729, 27892, 41458, 55784, 82916, 111568, 165832, 331664, 400397, 800794, 1601588, 3203176, 6406352, 7607543, 15215086, 30430172, 60860344, 121720688]

約数ペア:

[(1, 121720688), (2, 60860344), (4, 30430172), (8, 15215086), (16, 7607543), (19, 6406352), (38, 3203176), (76, 1601588), (152, 800794), (304, 400397), (367, 331664), (734, 165832), (1091, 111568), (1468, 82916), (2182, 55784), (2936, 41458), (4364, 27892), (5872, 20729), (6973, 17456), (8728, 13946)]