77421380

素因数分解:

$2^2\times 5^1\times {\mathrm{857}}^1\times {\mathrm{4517}}^1$

素因数の和:5383

約数の個数: 24

約数和(自身を含む): 162810648

約数和(自身を除く): 85389268

約数列:

[1, 2, 4, 5, 10, 20, 857, 1714, 3428, 4285, 4517, 8570, 9034, 17140, 18068, 22585, 45170, 90340, 3871069, 7742138, 15484276, 19355345, 38710690, 77421380]

約数ペア:

[(1, 77421380), (2, 38710690), (4, 19355345), (5, 15484276), (10, 7742138), (20, 3871069), (857, 90340), (1714, 45170), (3428, 22585), (4285, 18068), (4517, 17140), (8570, 9034)]