19265020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15791}}^1$

素因数の和:15861

約数の個数: 24

約数和(自身を含む): 41122368

約数和(自身を除く): 21857348

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 15791, 31582, 63164, 78955, 157910, 315820, 963251, 1926502, 3853004, 4816255, 9632510, 19265020]

約数ペア:

[(1, 19265020), (2, 9632510), (4, 4816255), (5, 3853004), (10, 1926502), (20, 963251), (61, 315820), (122, 157910), (244, 78955), (305, 63164), (610, 31582), (1220, 15791)]