19216520

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6581}}^1$

素因数の和:6665

約数の個数: 32

約数和(自身を含む): 43836120

約数和(自身を除く): 24619600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 6581, 13162, 26324, 32905, 52648, 65810, 131620, 263240, 480413, 960826, 1921652, 2402065, 3843304, 4804130, 9608260, 19216520]

約数ペア:

[(1, 19216520), (2, 9608260), (4, 4804130), (5, 3843304), (8, 2402065), (10, 1921652), (20, 960826), (40, 480413), (73, 263240), (146, 131620), (292, 65810), (365, 52648), (584, 32905), (730, 26324), (1460, 13162), (2920, 6581)]