645638408

素因数分解:

$2^3\times {\mathrm{83}}^1\times {\mathrm{972347}}^1$

素因数の和:972436

約数の個数: 16

約数和(自身を含む): 1225158480

約数和(自身を除く): 579520072

約数列:

[1, 2, 4, 8, 83, 166, 332, 664, 972347, 1944694, 3889388, 7778776, 80704801, 161409602, 322819204, 645638408]

約数ペア:

[(1, 645638408), (2, 322819204), (4, 161409602), (8, 80704801), (83, 7778776), (166, 3889388), (332, 1944694), (664, 972347)]