644980147192

素因数分解:

$2^3\times {\mathrm{421}}^1\times {\mathrm{191502419}}^1$

素因数の和:191502846

約数の個数: 16

約数和(自身を含む): 1212210318600

約数和(自身を除く): 567230171408

約数列:

[1, 2, 4, 8, 421, 842, 1684, 3368, 191502419, 383004838, 766009676, 1532019352, 80622518399, 161245036798, 322490073596, 644980147192]

約数ペア:

[(1, 644980147192), (2, 322490073596), (4, 161245036798), (8, 80622518399), (421, 1532019352), (842, 766009676), (1684, 383004838), (3368, 191502419)]