31038700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:200

約数の個数: 144

約数和(自身を含む): 87494400

約数和(自身を除く): 56455700

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 29, 35, 44, 50, 55, 58, 70, 77, 100, 110, 116, 139, 140, 145, 154, 175, 203, 220, 275, 278, 290, 308, 319, 350, 385, 406, 550, 556, 580, 638, 695, 700, 725, 770, 812, 973, 1015, 1100, 1276, 1390, 1450, 1529, 1540, 1595, 1925, 1946, 2030, 2233, 2780, 2900, 3058, 3190, 3475, 3850, 3892, 4031, 4060, 4466, 4865, 5075, 6116, 6380, 6950, 7645, 7700, 7975, 8062, 8932, 9730, 10150, 10703, 11165, 13900, 15290, 15950, 16124, 19460, 20155, 20300, 21406, 22330, 24325, 28217, 30580, 31900, 38225, 40310, 42812, 44341, 44660, 48650, 53515, 55825, 56434, 76450, 80620, 88682, 97300, 100775, 107030, 111650, 112868, 141085, 152900, 177364, 201550, 214060, 221705, 223300, 267575, 282170, 310387, 403100, 443410, 535150, 564340, 620774, 705425, 886820, 1070300, 1108525, 1241548, 1410850, 1551935, 2217050, 2821700, 3103870, 4434100, 6207740, 7759675, 15519350, 31038700]

約数ペア:

[(1, 31038700), (2, 15519350), (4, 7759675), (5, 6207740), (7, 4434100), (10, 3103870), (11, 2821700), (14, 2217050), (20, 1551935), (22, 1410850), (25, 1241548), (28, 1108525), (29, 1070300), (35, 886820), (44, 705425), (50, 620774), (55, 564340), (58, 535150), (70, 443410), (77, 403100), (100, 310387), (110, 282170), (116, 267575), (139, 223300), (140, 221705), (145, 214060), (154, 201550), (175, 177364), (203, 152900), (220, 141085), (275, 112868), (278, 111650), (290, 107030), (308, 100775), (319, 97300), (350, 88682), (385, 80620), (406, 76450), (550, 56434), (556, 55825), (580, 53515), (638, 48650), (695, 44660), (700, 44341), (725, 42812), (770, 40310), (812, 38225), (973, 31900), (1015, 30580), (1100, 28217), (1276, 24325), (1390, 22330), (1450, 21406), (1529, 20300), (1540, 20155), (1595, 19460), (1925, 16124), (1946, 15950), (2030, 15290), (2233, 13900), (2780, 11165), (2900, 10703), (3058, 10150), (3190, 9730), (3475, 8932), (3850, 8062), (3892, 7975), (4031, 7700), (4060, 7645), (4466, 6950), (4865, 6380), (5075, 6116)]