81730970

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{2887}}^1$

素因数の和:3062

約数の個数: 32

約数和(自身を含む): 155952000

約数和(自身を除く): 74221030

約数列:

[1, 2, 5, 10, 19, 38, 95, 149, 190, 298, 745, 1490, 2831, 2887, 5662, 5774, 14155, 14435, 28310, 28870, 54853, 109706, 274265, 430163, 548530, 860326, 2150815, 4301630, 8173097, 16346194, 40865485, 81730970]

約数ペア:

[(1, 81730970), (2, 40865485), (5, 16346194), (10, 8173097), (19, 4301630), (38, 2150815), (95, 860326), (149, 548530), (190, 430163), (298, 274265), (745, 109706), (1490, 54853), (2831, 28870), (2887, 28310), (5662, 14435), (5774, 14155)]