19743260

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16183}}^1$

素因数の和:16253

約数の個数: 24

約数和(自身を含む): 42143136

約数和(自身を除く): 22399876

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 16183, 32366, 64732, 80915, 161830, 323660, 987163, 1974326, 3948652, 4935815, 9871630, 19743260]

約数ペア:

[(1, 19743260), (2, 9871630), (4, 4935815), (5, 3948652), (10, 1974326), (20, 987163), (61, 323660), (122, 161830), (244, 80915), (305, 64732), (610, 32366), (1220, 16183)]