640886302

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2409347}}^1$

素因数の和:2409375

約数の個数: 16

約数和(自身を含む): 1156487040

約数和(自身を除く): 515600738

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 2409347, 4818694, 16865429, 33730858, 45777593, 91555186, 320443151, 640886302]

約数ペア:

[(1, 640886302), (2, 320443151), (7, 91555186), (14, 45777593), (19, 33730858), (38, 16865429), (133, 4818694), (266, 2409347)]