15970820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{439}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 35925120

約数和(自身を除く): 19954300

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 107, 170, 214, 340, 428, 439, 535, 878, 1070, 1756, 1819, 2140, 2195, 3638, 4390, 7276, 7463, 8780, 9095, 14926, 18190, 29852, 36380, 37315, 46973, 74630, 93946, 149260, 187892, 234865, 469730, 798541, 939460, 1597082, 3194164, 3992705, 7985410, 15970820]

約数ペア:

[(1, 15970820), (2, 7985410), (4, 3992705), (5, 3194164), (10, 1597082), (17, 939460), (20, 798541), (34, 469730), (68, 234865), (85, 187892), (107, 149260), (170, 93946), (214, 74630), (340, 46973), (428, 37315), (439, 36380), (535, 29852), (878, 18190), (1070, 14926), (1756, 9095), (1819, 8780), (2140, 7463), (2195, 7276), (3638, 4390)]