81189200

素因数分解:

$2^4\times 5^2\times {\mathrm{202973}}^1$

素因数の和:202991

約数の個数: 30

約数和(自身を含む): 195058014

約数和(自身を除く): 113868814

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 202973, 405946, 811892, 1014865, 1623784, 2029730, 3247568, 4059460, 5074325, 8118920, 10148650, 16237840, 20297300, 40594600, 81189200]

約数ペア:

[(1, 81189200), (2, 40594600), (4, 20297300), (5, 16237840), (8, 10148650), (10, 8118920), (16, 5074325), (20, 4059460), (25, 3247568), (40, 2029730), (50, 1623784), (80, 1014865), (100, 811892), (200, 405946), (400, 202973)]