210008990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{28729}}^1$

素因数の和:28796

約数の個数: 32

約数和(自身を含む): 409574880

約数和(自身を除く): 199565890

約数列:

[1, 2, 5, 10, 17, 34, 43, 85, 86, 170, 215, 430, 731, 1462, 3655, 7310, 28729, 57458, 143645, 287290, 488393, 976786, 1235347, 2441965, 2470694, 4883930, 6176735, 12353470, 21000899, 42001798, 105004495, 210008990]

約数ペア:

[(1, 210008990), (2, 105004495), (5, 42001798), (10, 21000899), (17, 12353470), (34, 6176735), (43, 4883930), (85, 2470694), (86, 2441965), (170, 1235347), (215, 976786), (430, 488393), (731, 287290), (1462, 143645), (3655, 57458), (7310, 28729)]