203820395

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 265420800

約数和(自身を除く): 61600405

約数列:

[1, 5, 17, 79, 85, 127, 239, 395, 635, 1195, 1343, 2159, 4063, 6715, 10033, 10795, 18881, 20315, 30353, 50165, 94405, 151765, 170561, 320977, 516001, 852805, 1604885, 2397887, 2580005, 11989435, 40764079, 203820395]

約数ペア:

[(1, 203820395), (5, 40764079), (17, 11989435), (79, 2580005), (85, 2397887), (127, 1604885), (239, 852805), (395, 516001), (635, 320977), (1195, 170561), (1343, 151765), (2159, 94405), (4063, 50165), (6715, 30353), (10033, 20315), (10795, 18881)]