18636170

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{521}}^1$

素因数の和:615

約数の個数: 48

約数和(自身を含む): 39632328

約数和(自身を除く): 20996158

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 73, 98, 146, 245, 365, 490, 511, 521, 730, 1022, 1042, 2555, 2605, 3577, 3647, 5110, 5210, 7154, 7294, 17885, 18235, 25529, 35770, 36470, 38033, 51058, 76066, 127645, 190165, 255290, 266231, 380330, 532462, 1331155, 1863617, 2662310, 3727234, 9318085, 18636170]

約数ペア:

[(1, 18636170), (2, 9318085), (5, 3727234), (7, 2662310), (10, 1863617), (14, 1331155), (35, 532462), (49, 380330), (70, 266231), (73, 255290), (98, 190165), (146, 127645), (245, 76066), (365, 51058), (490, 38033), (511, 36470), (521, 35770), (730, 25529), (1022, 18235), (1042, 17885), (2555, 7294), (2605, 7154), (3577, 5210), (3647, 5110)]