398881270

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1\times {\mathrm{1877}}^1$

素因数の和:2232

約数の個数: 32

約数和(自身を含む): 730166400

約数和(自身を除く): 331285130

約数列:

[1, 2, 5, 10, 79, 158, 269, 395, 538, 790, 1345, 1877, 2690, 3754, 9385, 18770, 21251, 42502, 106255, 148283, 212510, 296566, 504913, 741415, 1009826, 1482830, 2524565, 5049130, 39888127, 79776254, 199440635, 398881270]

約数ペア:

[(1, 398881270), (2, 199440635), (5, 79776254), (10, 39888127), (79, 5049130), (158, 2524565), (269, 1482830), (395, 1009826), (538, 741415), (790, 504913), (1345, 296566), (1877, 212510), (2690, 148283), (3754, 106255), (9385, 42502), (18770, 21251)]