787366940

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1\times {\mathrm{3889}}^1$

素因数の和:4142

約数の個数: 48

約数和(自身を含む): 1693923840

約数和(自身を除く): 906556900

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 191, 212, 265, 382, 530, 764, 955, 1060, 1910, 3820, 3889, 7778, 10123, 15556, 19445, 20246, 38890, 40492, 50615, 77780, 101230, 202460, 206117, 412234, 742799, 824468, 1030585, 1485598, 2061170, 2971196, 3713995, 4122340, 7427990, 14855980, 39368347, 78736694, 157473388, 196841735, 393683470, 787366940]

約数ペア:

[(1, 787366940), (2, 393683470), (4, 196841735), (5, 157473388), (10, 78736694), (20, 39368347), (53, 14855980), (106, 7427990), (191, 4122340), (212, 3713995), (265, 2971196), (382, 2061170), (530, 1485598), (764, 1030585), (955, 824468), (1060, 742799), (1910, 412234), (3820, 206117), (3889, 202460), (7778, 101230), (10123, 77780), (15556, 50615), (19445, 40492), (20246, 38890)]