20412700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{241}}^1$

素因数の和:284

約数の個数: 108

約数和(自身を含む): 55874896

約数和(自身を除く): 35462196

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 121, 140, 154, 175, 220, 241, 242, 275, 308, 350, 385, 482, 484, 550, 605, 700, 770, 847, 964, 1100, 1205, 1210, 1540, 1687, 1694, 1925, 2410, 2420, 2651, 3025, 3374, 3388, 3850, 4235, 4820, 5302, 6025, 6050, 6748, 7700, 8435, 8470, 10604, 12050, 12100, 13255, 16870, 16940, 18557, 21175, 24100, 26510, 29161, 33740, 37114, 42175, 42350, 53020, 58322, 66275, 74228, 84350, 84700, 92785, 116644, 132550, 145805, 168700, 185570, 204127, 265100, 291610, 371140, 408254, 463925, 583220, 729025, 816508, 927850, 1020635, 1458050, 1855700, 2041270, 2916100, 4082540, 5103175, 10206350, 20412700]

約数ペア:

[(1, 20412700), (2, 10206350), (4, 5103175), (5, 4082540), (7, 2916100), (10, 2041270), (11, 1855700), (14, 1458050), (20, 1020635), (22, 927850), (25, 816508), (28, 729025), (35, 583220), (44, 463925), (50, 408254), (55, 371140), (70, 291610), (77, 265100), (100, 204127), (110, 185570), (121, 168700), (140, 145805), (154, 132550), (175, 116644), (220, 92785), (241, 84700), (242, 84350), (275, 74228), (308, 66275), (350, 58322), (385, 53020), (482, 42350), (484, 42175), (550, 37114), (605, 33740), (700, 29161), (770, 26510), (847, 24100), (964, 21175), (1100, 18557), (1205, 16940), (1210, 16870), (1540, 13255), (1687, 12100), (1694, 12050), (1925, 10604), (2410, 8470), (2420, 8435), (2651, 7700), (3025, 6748), (3374, 6050), (3388, 6025), (3850, 5302), (4235, 4820)]