168980140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1207001}}^1$

素因数の和:1207017

約数の個数: 24

約数和(自身を含む): 405552672

約数和(自身を除く): 236572532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1207001, 2414002, 4828004, 6035005, 8449007, 12070010, 16898014, 24140020, 33796028, 42245035, 84490070, 168980140]

約数ペア:

[(1, 168980140), (2, 84490070), (4, 42245035), (5, 33796028), (7, 24140020), (10, 16898014), (14, 12070010), (20, 8449007), (28, 6035005), (35, 4828004), (70, 2414002), (140, 1207001)]