19115990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4889}}^1$

素因数の和:4936

約数の個数: 32

約数和(自身を含む): 38024640

約数和(自身を除く): 18908650

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955, 3910, 4889, 9778, 24445, 48890, 83113, 112447, 166226, 224894, 415565, 562235, 831130, 1124470, 1911599, 3823198, 9557995, 19115990]

約数ペア:

[(1, 19115990), (2, 9557995), (5, 3823198), (10, 1911599), (17, 1124470), (23, 831130), (34, 562235), (46, 415565), (85, 224894), (115, 166226), (170, 112447), (230, 83113), (391, 48890), (782, 24445), (1955, 9778), (3910, 4889)]