81431175

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1423}}^1$

素因数の和:1552

約数の個数: 48

約数和(自身を含む): 155386880

約数和(自身を除く): 73955705

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 109, 175, 327, 525, 545, 763, 1423, 1635, 2289, 2725, 3815, 4269, 7115, 8175, 9961, 11445, 19075, 21345, 29883, 35575, 49805, 57225, 106725, 149415, 155107, 249025, 465321, 747075, 775535, 1085749, 2326605, 3257247, 3877675, 5428745, 11633025, 16286235, 27143725, 81431175]

約数ペア:

[(1, 81431175), (3, 27143725), (5, 16286235), (7, 11633025), (15, 5428745), (21, 3877675), (25, 3257247), (35, 2326605), (75, 1085749), (105, 775535), (109, 747075), (175, 465321), (327, 249025), (525, 155107), (545, 149415), (763, 106725), (1423, 57225), (1635, 49805), (2289, 35575), (2725, 29883), (3815, 21345), (4269, 19075), (7115, 11445), (8175, 9961)]