27901690

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:235

約数の個数: 48

約数和(自身を含む): 54315360

約数和(自身を除く): 26413670

約数列:

[1, 2, 5, 10, 19, 38, 59, 95, 118, 131, 190, 262, 295, 361, 590, 655, 722, 1121, 1310, 1805, 2242, 2489, 3610, 4978, 5605, 7729, 11210, 12445, 15458, 21299, 24890, 38645, 42598, 47291, 77290, 94582, 106495, 146851, 212990, 236455, 293702, 472910, 734255, 1468510, 2790169, 5580338, 13950845, 27901690]

約数ペア:

[(1, 27901690), (2, 13950845), (5, 5580338), (10, 2790169), (19, 1468510), (38, 734255), (59, 472910), (95, 293702), (118, 236455), (131, 212990), (190, 146851), (262, 106495), (295, 94582), (361, 77290), (590, 47291), (655, 42598), (722, 38645), (1121, 24890), (1310, 21299), (1805, 15458), (2242, 12445), (2489, 11210), (3610, 7729), (4978, 5605)]