72149980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{515357}}^1$

素因数の和:515373

約数の個数: 24

約数和(自身を含む): 173160288

約数和(自身を除く): 101010308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 515357, 1030714, 2061428, 2576785, 3607499, 5153570, 7214998, 10307140, 14429996, 18037495, 36074990, 72149980]

約数ペア:

[(1, 72149980), (2, 36074990), (4, 18037495), (5, 14429996), (7, 10307140), (10, 7214998), (14, 5153570), (20, 3607499), (28, 2576785), (35, 2061428), (70, 1030714), (140, 515357)]