81878910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{12239}}^1$

素因数の和:12472

約数の個数: 32

約数和(自身を含む): 197406720

約数和(自身を除く): 115527810

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 223, 446, 669, 1115, 1338, 2230, 3345, 6690, 12239, 24478, 36717, 61195, 73434, 122390, 183585, 367170, 2729297, 5458594, 8187891, 13646485, 16375782, 27292970, 40939455, 81878910]

約数ペア:

[(1, 81878910), (2, 40939455), (3, 27292970), (5, 16375782), (6, 13646485), (10, 8187891), (15, 5458594), (30, 2729297), (223, 367170), (446, 183585), (669, 122390), (1115, 73434), (1338, 61195), (2230, 36717), (3345, 24478), (6690, 12239)]