1640390042

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1\times {\mathrm{3343}}^1$

素因数の和:3750

約数の個数: 32

約数和(自身を含む): 2668512000

約数和(自身を除く): 1028121958

約数列:

[1, 2, 19, 37, 38, 74, 349, 698, 703, 1406, 3343, 6631, 6686, 12913, 13262, 25826, 63517, 123691, 127034, 245347, 247382, 490694, 1166707, 2333414, 2350129, 4700258, 22167433, 43168159, 44334866, 86336318, 820195021, 1640390042]

約数ペア:

[(1, 1640390042), (2, 820195021), (19, 86336318), (37, 44334866), (38, 43168159), (74, 22167433), (349, 4700258), (698, 2350129), (703, 2333414), (1406, 1166707), (3343, 490694), (6631, 247382), (6686, 245347), (12913, 127034), (13262, 123691), (25826, 63517)]