31486420

素因数分解:

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

素因数の和:150

約数の個数: 108

約数和(自身を含む): 82090260

約数和(自身を除く): 50603840

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, 361, 380, 445, 490, 532, 623, 665, 722, 890, 931, 980, 1246, 1330, 1444, 1691, 1780, 1805, 1862, 2492, 2527, 2660, 3115, 3382, 3610, 3724, 4361, 4655, 5054, 6230, 6764, 7220, 8455, 8722, 9310, 10108, 11837, 12460, 12635, 16910, 17444, 17689, 18620, 21805, 23674, 25270, 32129, 33820, 35378, 43610, 47348, 50540, 59185, 64258, 70756, 82859, 87220, 88445, 118370, 128516, 160645, 165718, 176890, 224903, 236740, 321290, 331436, 353780, 414295, 449806, 642580, 828590, 899612, 1124515, 1574321, 1657180, 2249030, 3148642, 4498060, 6297284, 7871605, 15743210, 31486420]

約数ペア:

[(1, 31486420), (2, 15743210), (4, 7871605), (5, 6297284), (7, 4498060), (10, 3148642), (14, 2249030), (19, 1657180), (20, 1574321), (28, 1124515), (35, 899612), (38, 828590), (49, 642580), (70, 449806), (76, 414295), (89, 353780), (95, 331436), (98, 321290), (133, 236740), (140, 224903), (178, 176890), (190, 165718), (196, 160645), (245, 128516), (266, 118370), (356, 88445), (361, 87220), (380, 82859), (445, 70756), (490, 64258), (532, 59185), (623, 50540), (665, 47348), (722, 43610), (890, 35378), (931, 33820), (980, 32129), (1246, 25270), (1330, 23674), (1444, 21805), (1691, 18620), (1780, 17689), (1805, 17444), (1862, 16910), (2492, 12635), (2527, 12460), (2660, 11837), (3115, 10108), (3382, 9310), (3610, 8722), (3724, 8455), (4361, 7220), (4655, 6764), (5054, 6230)]