28277290

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{4057}}^1$

素因数の和:4122

約数の個数: 32

約数和(自身を含む): 55221264

約数和(自身を除く): 26943974

約数列:

[1, 2, 5, 10, 17, 34, 41, 82, 85, 170, 205, 410, 697, 1394, 3485, 4057, 6970, 8114, 20285, 40570, 68969, 137938, 166337, 332674, 344845, 689690, 831685, 1663370, 2827729, 5655458, 14138645, 28277290]

約数ペア:

[(1, 28277290), (2, 14138645), (5, 5655458), (10, 2827729), (17, 1663370), (34, 831685), (41, 689690), (82, 344845), (85, 332674), (170, 166337), (205, 137938), (410, 68969), (697, 40570), (1394, 20285), (3485, 8114), (4057, 6970)]