19777450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{467}}^1$

素因数の和:508

約数の個数: 72

約数和(自身を含む): 46309536

約数和(自身を除く): 26532086

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 121, 154, 175, 242, 275, 350, 385, 467, 550, 605, 770, 847, 934, 1210, 1694, 1925, 2335, 3025, 3269, 3850, 4235, 4670, 5137, 6050, 6538, 8470, 10274, 11675, 16345, 21175, 23350, 25685, 32690, 35959, 42350, 51370, 56507, 71918, 81725, 113014, 128425, 163450, 179795, 256850, 282535, 359590, 395549, 565070, 791098, 898975, 1412675, 1797950, 1977745, 2825350, 3955490, 9888725, 19777450]

約数ペア:

[(1, 19777450), (2, 9888725), (5, 3955490), (7, 2825350), (10, 1977745), (11, 1797950), (14, 1412675), (22, 898975), (25, 791098), (35, 565070), (50, 395549), (55, 359590), (70, 282535), (77, 256850), (110, 179795), (121, 163450), (154, 128425), (175, 113014), (242, 81725), (275, 71918), (350, 56507), (385, 51370), (467, 42350), (550, 35959), (605, 32690), (770, 25685), (847, 23350), (934, 21175), (1210, 16345), (1694, 11675), (1925, 10274), (2335, 8470), (3025, 6538), (3269, 6050), (3850, 5137), (4235, 4670)]