177135980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{180751}}^1$

素因数の和:180774

約数の個数: 36

約数和(自身を含む): 432720288

約数和(自身を除く): 255584308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 180751, 361502, 723004, 903755, 1265257, 1807510, 2530514, 3615020, 5061028, 6326285, 8856799, 12652570, 17713598, 25305140, 35427196, 44283995, 88567990, 177135980]

約数ペア:

[(1, 177135980), (2, 88567990), (4, 44283995), (5, 35427196), (7, 25305140), (10, 17713598), (14, 12652570), (20, 8856799), (28, 6326285), (35, 5061028), (49, 3615020), (70, 2530514), (98, 1807510), (140, 1265257), (196, 903755), (245, 723004), (490, 361502), (980, 180751)]