121720900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{24841}}^1$

素因数の和:24869

約数の個数: 54

約数和(自身を含む): 307270698

約数和(自身を除く): 185549798

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 24841, 49682, 99364, 124205, 173887, 248410, 347774, 496820, 621025, 695548, 869435, 1217209, 1242050, 1738870, 2434418, 2484100, 3477740, 4347175, 4868836, 6086045, 8694350, 12172090, 17388700, 24344180, 30430225, 60860450, 121720900]

約数ペア:

[(1, 121720900), (2, 60860450), (4, 30430225), (5, 24344180), (7, 17388700), (10, 12172090), (14, 8694350), (20, 6086045), (25, 4868836), (28, 4347175), (35, 3477740), (49, 2484100), (50, 2434418), (70, 1738870), (98, 1242050), (100, 1217209), (140, 869435), (175, 695548), (196, 621025), (245, 496820), (350, 347774), (490, 248410), (700, 173887), (980, 124205), (1225, 99364), (2450, 49682), (4900, 24841)]