77150540

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^2\times {\mathrm{487}}^1$

素因数の和:674

約数の個数: 36

約数和(自身を含む): 164193456

約数和(自身を除く): 87042916

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 487, 890, 974, 1780, 1948, 2435, 4870, 7921, 9740, 15842, 31684, 39605, 43343, 79210, 86686, 158420, 173372, 216715, 433430, 866860, 3857527, 7715054, 15430108, 19287635, 38575270, 77150540]

約数ペア:

[(1, 77150540), (2, 38575270), (4, 19287635), (5, 15430108), (10, 7715054), (20, 3857527), (89, 866860), (178, 433430), (356, 216715), (445, 173372), (487, 158420), (890, 86686), (974, 79210), (1780, 43343), (1948, 39605), (2435, 31684), (4870, 15842), (7921, 9740)]