140638165

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{21101}}^1$

素因数の和:21180

約数の個数: 16

約数和(自身を含む): 178269696

約数和(自身を除く): 37631531

約数列:

[1, 5, 31, 43, 155, 215, 1333, 6665, 21101, 105505, 654131, 907343, 3270655, 4536715, 28127633, 140638165]

約数ペア:

[(1, 140638165), (5, 28127633), (31, 4536715), (43, 3270655), (155, 907343), (215, 654131), (1333, 105505), (6665, 21101)]