123780212

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{691}}^1\times {\mathrm{2357}}^1$

素因数の和:3071

約数の個数: 24

約数和(自身を含む): 228443040

約数和(自身を除く): 104662828

約数列:

[1, 2, 4, 19, 38, 76, 691, 1382, 2357, 2764, 4714, 9428, 13129, 26258, 44783, 52516, 89566, 179132, 1628687, 3257374, 6514748, 30945053, 61890106, 123780212]

約数ペア:

[(1, 123780212), (2, 61890106), (4, 30945053), (19, 6514748), (38, 3257374), (76, 1628687), (691, 179132), (1382, 89566), (2357, 52516), (2764, 44783), (4714, 26258), (9428, 13129)]