20154045

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:413

約数の個数: 32

約数和(自身を含む): 33312384

約数和(自身を除く): 13158339

約数列:

[1, 3, 5, 15, 53, 101, 159, 251, 265, 303, 505, 753, 795, 1255, 1515, 3765, 5353, 13303, 16059, 25351, 26765, 39909, 66515, 76053, 80295, 126755, 199545, 380265, 1343603, 4030809, 6718015, 20154045]

約数ペア:

[(1, 20154045), (3, 6718015), (5, 4030809), (15, 1343603), (53, 380265), (101, 199545), (159, 126755), (251, 80295), (265, 76053), (303, 66515), (505, 39909), (753, 26765), (795, 25351), (1255, 16059), (1515, 13303), (3765, 5353)]