320642005

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{349}}^1\times {\mathrm{509}}^1$

素因数の和:901

約数の個数: 24

約数和(自身を含む): 408051000

約数和(自身を除く): 87408995

約数列:

[1, 5, 19, 95, 349, 361, 509, 1745, 1805, 2545, 6631, 9671, 33155, 48355, 125989, 177641, 183749, 629945, 888205, 918745, 3375179, 16875895, 64128401, 320642005]

約数ペア:

[(1, 320642005), (5, 64128401), (19, 16875895), (95, 3375179), (349, 918745), (361, 888205), (509, 629945), (1745, 183749), (1805, 177641), (2545, 125989), (6631, 48355), (9671, 33155)]