668108900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1697}}^1$

素因数の和:1869

約数の個数: 72

約数和(自身を含む): 1509236736

約数和(自身を除く): 841127836

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 127, 155, 254, 310, 508, 620, 635, 775, 1270, 1550, 1697, 2540, 3100, 3175, 3394, 3937, 6350, 6788, 7874, 8485, 12700, 15748, 16970, 19685, 33940, 39370, 42425, 52607, 78740, 84850, 98425, 105214, 169700, 196850, 210428, 215519, 263035, 393700, 431038, 526070, 862076, 1052140, 1077595, 1315175, 2155190, 2630350, 4310380, 5260700, 5387975, 6681089, 10775950, 13362178, 21551900, 26724356, 33405445, 66810890, 133621780, 167027225, 334054450, 668108900]

約数ペア:

[(1, 668108900), (2, 334054450), (4, 167027225), (5, 133621780), (10, 66810890), (20, 33405445), (25, 26724356), (31, 21551900), (50, 13362178), (62, 10775950), (100, 6681089), (124, 5387975), (127, 5260700), (155, 4310380), (254, 2630350), (310, 2155190), (508, 1315175), (620, 1077595), (635, 1052140), (775, 862076), (1270, 526070), (1550, 431038), (1697, 393700), (2540, 263035), (3100, 215519), (3175, 210428), (3394, 196850), (3937, 169700), (6350, 105214), (6788, 98425), (7874, 84850), (8485, 78740), (12700, 52607), (15748, 42425), (16970, 39370), (19685, 33940)]