20805364336

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{7977517}}^1$

素因数の和:7977688

約数の個数: 20

約数和(自身を含む): 40557701512

約数和(自身を除く): 19752337176

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 7977517, 15955034, 31910068, 63820136, 127640272, 1300335271, 2600670542, 5201341084, 10402682168, 20805364336]

約数ペア:

[(1, 20805364336), (2, 10402682168), (4, 5201341084), (8, 2600670542), (16, 1300335271), (163, 127640272), (326, 63820136), (652, 31910068), (1304, 15955034), (2608, 7977517)]