205423925

素因数分解:

$5^2\times 7^2\times {\mathrm{23}}^2\times {\mathrm{317}}^1$

素因数の和:387

約数の個数: 54

約数和(自身を含む): 310734018

約数和(自身を除く): 105310093

約数列:

[1, 5, 7, 23, 25, 35, 49, 115, 161, 175, 245, 317, 529, 575, 805, 1127, 1225, 1585, 2219, 2645, 3703, 4025, 5635, 7291, 7925, 11095, 13225, 15533, 18515, 25921, 28175, 36455, 51037, 55475, 77665, 92575, 129605, 167693, 182275, 255185, 357259, 388325, 648025, 838465, 1173851, 1275925, 1786295, 4192325, 5869255, 8216957, 8931475, 29346275, 41084785, 205423925]

約数ペア:

[(1, 205423925), (5, 41084785), (7, 29346275), (23, 8931475), (25, 8216957), (35, 5869255), (49, 4192325), (115, 1786295), (161, 1275925), (175, 1173851), (245, 838465), (317, 648025), (529, 388325), (575, 357259), (805, 255185), (1127, 182275), (1225, 167693), (1585, 129605), (2219, 92575), (2645, 77665), (3703, 55475), (4025, 51037), (5635, 36455), (7291, 28175), (7925, 25921), (11095, 18515), (13225, 15533)]