80016290

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1\times {\mathrm{449}}^1$

素因数の和:778

約数の個数: 32

約数和(自身を含む): 146966400

約数和(自身を除く): 66950110

約数列:

[1, 2, 5, 10, 71, 142, 251, 355, 449, 502, 710, 898, 1255, 2245, 2510, 4490, 17821, 31879, 35642, 63758, 89105, 112699, 159395, 178210, 225398, 318790, 563495, 1126990, 8001629, 16003258, 40008145, 80016290]

約数ペア:

[(1, 80016290), (2, 40008145), (5, 16003258), (10, 8001629), (71, 1126990), (142, 563495), (251, 318790), (355, 225398), (449, 178210), (502, 159395), (710, 112699), (898, 89105), (1255, 63758), (2245, 35642), (2510, 31879), (4490, 17821)]