13268251900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{1249}}^1\times {\mathrm{2591}}^1$

素因数の和:3895

約数の個数: 72

約数和(自身を含む): 29529360000

約数和(自身を除く): 16261108100

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 1249, 2050, 2498, 2591, 4100, 4996, 5182, 6245, 10364, 12490, 12955, 24980, 25910, 31225, 51209, 51820, 62450, 64775, 102418, 106231, 124900, 129550, 204836, 212462, 256045, 259100, 424924, 512090, 531155, 1024180, 1062310, 1280225, 2124620, 2560450, 2655775, 3236159, 5120900, 5311550, 6472318, 10623100, 12944636, 16180795, 32361590, 64723180, 80903975, 132682519, 161807950, 265365038, 323615900, 530730076, 663412595, 1326825190, 2653650380, 3317062975, 6634125950, 13268251900]

約数ペア:

[(1, 13268251900), (2, 6634125950), (4, 3317062975), (5, 2653650380), (10, 1326825190), (20, 663412595), (25, 530730076), (41, 323615900), (50, 265365038), (82, 161807950), (100, 132682519), (164, 80903975), (205, 64723180), (410, 32361590), (820, 16180795), (1025, 12944636), (1249, 10623100), (2050, 6472318), (2498, 5311550), (2591, 5120900), (4100, 3236159), (4996, 2655775), (5182, 2560450), (6245, 2124620), (10364, 1280225), (12490, 1062310), (12955, 1024180), (24980, 531155), (25910, 512090), (31225, 424924), (51209, 259100), (51820, 256045), (62450, 212462), (64775, 204836), (102418, 129550), (106231, 124900)]