201105905

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1747}}^1$

素因数の和:1806

約数の個数: 64

約数和(自身を含む): 338300928

約数和(自身を除く): 137195023

約数列:

[1, 5, 7, 11, 13, 23, 35, 55, 65, 77, 91, 115, 143, 161, 253, 299, 385, 455, 715, 805, 1001, 1265, 1495, 1747, 1771, 2093, 3289, 5005, 8735, 8855, 10465, 12229, 16445, 19217, 22711, 23023, 40181, 61145, 96085, 113555, 115115, 134519, 158977, 200905, 249821, 281267, 441991, 522353, 672595, 794885, 1249105, 1406335, 1748747, 2209955, 2611765, 3093937, 3656471, 5745883, 8743735, 15469685, 18282355, 28729415, 40221181, 201105905]

約数ペア:

[(1, 201105905), (5, 40221181), (7, 28729415), (11, 18282355), (13, 15469685), (23, 8743735), (35, 5745883), (55, 3656471), (65, 3093937), (77, 2611765), (91, 2209955), (115, 1748747), (143, 1406335), (161, 1249105), (253, 794885), (299, 672595), (385, 522353), (455, 441991), (715, 281267), (805, 249821), (1001, 200905), (1265, 158977), (1495, 134519), (1747, 115115), (1771, 113555), (2093, 96085), (3289, 61145), (5005, 40181), (8735, 23023), (8855, 22711), (10465, 19217), (12229, 16445)]