21081309700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^3\times {\mathrm{149}}^1\times {\mathrm{1063}}^1$

素因数の和:1259

約数の個数: 144

約数和(自身を含む): 50703004800

約数和(自身を除く): 29621695100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 149, 220, 242, 275, 298, 484, 550, 596, 605, 745, 1063, 1100, 1210, 1331, 1490, 1639, 2126, 2420, 2662, 2980, 3025, 3278, 3725, 4252, 5315, 5324, 6050, 6556, 6655, 7450, 8195, 10630, 11693, 12100, 13310, 14900, 16390, 18029, 21260, 23386, 26575, 26620, 32780, 33275, 36058, 40975, 46772, 53150, 58465, 66550, 72116, 81950, 90145, 106300, 116930, 128623, 133100, 158387, 163900, 180290, 198319, 233860, 257246, 292325, 316774, 360580, 396638, 450725, 514492, 584650, 633548, 643115, 791935, 793276, 901450, 991595, 1169300, 1286230, 1414853, 1583870, 1742257, 1802900, 1983190, 2572460, 2829706, 3167740, 3215575, 3484514, 3959675, 3966380, 4957975, 5659412, 6431150, 6969028, 7074265, 7919350, 8711285, 9915950, 12862300, 14148530, 15838700, 17422570, 19164827, 19831900, 28297060, 34845140, 35371325, 38329654, 43556425, 70742650, 76659308, 87112850, 95824135, 141485300, 174225700, 191648270, 210813097, 383296540, 421626194, 479120675, 843252388, 958241350, 1054065485, 1916482700, 2108130970, 4216261940, 5270327425, 10540654850, 21081309700]

約数ペア:

[(1, 21081309700), (2, 10540654850), (4, 5270327425), (5, 4216261940), (10, 2108130970), (11, 1916482700), (20, 1054065485), (22, 958241350), (25, 843252388), (44, 479120675), (50, 421626194), (55, 383296540), (100, 210813097), (110, 191648270), (121, 174225700), (149, 141485300), (220, 95824135), (242, 87112850), (275, 76659308), (298, 70742650), (484, 43556425), (550, 38329654), (596, 35371325), (605, 34845140), (745, 28297060), (1063, 19831900), (1100, 19164827), (1210, 17422570), (1331, 15838700), (1490, 14148530), (1639, 12862300), (2126, 9915950), (2420, 8711285), (2662, 7919350), (2980, 7074265), (3025, 6969028), (3278, 6431150), (3725, 5659412), (4252, 4957975), (5315, 3966380), (5324, 3959675), (6050, 3484514), (6556, 3215575), (6655, 3167740), (7450, 2829706), (8195, 2572460), (10630, 1983190), (11693, 1802900), (12100, 1742257), (13310, 1583870), (14900, 1414853), (16390, 1286230), (18029, 1169300), (21260, 991595), (23386, 901450), (26575, 793276), (26620, 791935), (32780, 643115), (33275, 633548), (36058, 584650), (40975, 514492), (46772, 450725), (53150, 396638), (58465, 360580), (66550, 316774), (72116, 292325), (81950, 257246), (90145, 233860), (106300, 198319), (116930, 180290), (128623, 163900), (133100, 158387)]