20335700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:190

約数の個数: 144

約数和(自身を含む): 58329600

約数和(自身を除く): 37993900

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 25, 28, 35, 38, 44, 50, 55, 70, 76, 77, 95, 100, 110, 133, 139, 140, 154, 175, 190, 209, 220, 266, 275, 278, 308, 350, 380, 385, 418, 475, 532, 550, 556, 665, 695, 700, 770, 836, 950, 973, 1045, 1100, 1330, 1390, 1463, 1529, 1540, 1900, 1925, 1946, 2090, 2641, 2660, 2780, 2926, 3058, 3325, 3475, 3850, 3892, 4180, 4865, 5225, 5282, 5852, 6116, 6650, 6950, 7315, 7645, 7700, 9730, 10450, 10564, 10703, 13205, 13300, 13900, 14630, 15290, 18487, 19460, 20900, 21406, 24325, 26410, 29051, 29260, 30580, 36575, 36974, 38225, 42812, 48650, 52820, 53515, 58102, 66025, 73150, 73948, 76450, 92435, 97300, 107030, 116204, 132050, 145255, 146300, 152900, 184870, 203357, 214060, 264100, 267575, 290510, 369740, 406714, 462175, 535150, 581020, 726275, 813428, 924350, 1016785, 1070300, 1452550, 1848700, 2033570, 2905100, 4067140, 5083925, 10167850, 20335700]

約数ペア:

[(1, 20335700), (2, 10167850), (4, 5083925), (5, 4067140), (7, 2905100), (10, 2033570), (11, 1848700), (14, 1452550), (19, 1070300), (20, 1016785), (22, 924350), (25, 813428), (28, 726275), (35, 581020), (38, 535150), (44, 462175), (50, 406714), (55, 369740), (70, 290510), (76, 267575), (77, 264100), (95, 214060), (100, 203357), (110, 184870), (133, 152900), (139, 146300), (140, 145255), (154, 132050), (175, 116204), (190, 107030), (209, 97300), (220, 92435), (266, 76450), (275, 73948), (278, 73150), (308, 66025), (350, 58102), (380, 53515), (385, 52820), (418, 48650), (475, 42812), (532, 38225), (550, 36974), (556, 36575), (665, 30580), (695, 29260), (700, 29051), (770, 26410), (836, 24325), (950, 21406), (973, 20900), (1045, 19460), (1100, 18487), (1330, 15290), (1390, 14630), (1463, 13900), (1529, 13300), (1540, 13205), (1900, 10703), (1925, 10564), (1946, 10450), (2090, 9730), (2641, 7700), (2660, 7645), (2780, 7315), (2926, 6950), (3058, 6650), (3325, 6116), (3475, 5852), (3850, 5282), (3892, 5225), (4180, 4865)]