644319665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{479}}^1\times {\mathrm{661}}^1$

素因数の和:1193

約数の個数: 32

約数和(自身を含む): 869391360

約数和(自身を除く): 225071695

約数列:

[1, 5, 11, 37, 55, 185, 407, 479, 661, 2035, 2395, 3305, 5269, 7271, 17723, 24457, 26345, 36355, 88615, 122285, 194953, 269027, 316619, 974765, 1345135, 1583095, 3482809, 11714903, 17414045, 58574515, 128863933, 644319665]

約数ペア:

[(1, 644319665), (5, 128863933), (11, 58574515), (37, 17414045), (55, 11714903), (185, 3482809), (407, 1583095), (479, 1345135), (661, 974765), (2035, 316619), (2395, 269027), (3305, 194953), (5269, 122285), (7271, 88615), (17723, 36355), (24457, 26345)]