1657180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:131

約数の個数: 72

約数和(自身を含む): 4309200

約数和(自身を除く): 2652020

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 89, 95, 98, 133, 140, 178, 190, 196, 245, 266, 356, 380, 445, 490, 532, 623, 665, 890, 931, 980, 1246, 1330, 1691, 1780, 1862, 2492, 2660, 3115, 3382, 3724, 4361, 4655, 6230, 6764, 8455, 8722, 9310, 11837, 12460, 16910, 17444, 18620, 21805, 23674, 33820, 43610, 47348, 59185, 82859, 87220, 118370, 165718, 236740, 331436, 414295, 828590, 1657180]

約数ペア:

[(1, 1657180), (2, 828590), (4, 414295), (5, 331436), (7, 236740), (10, 165718), (14, 118370), (19, 87220), (20, 82859), (28, 59185), (35, 47348), (38, 43610), (49, 33820), (70, 23674), (76, 21805), (89, 18620), (95, 17444), (98, 16910), (133, 12460), (140, 11837), (178, 9310), (190, 8722), (196, 8455), (245, 6764), (266, 6230), (356, 4655), (380, 4361), (445, 3724), (490, 3382), (532, 3115), (623, 2660), (665, 2492), (890, 1862), (931, 1780), (980, 1691), (1246, 1330)]