201808915

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{457}}^1$

素因数の和:548

約数の個数: 64

約数和(自身を含む): 320790528

約数和(自身を除く): 118981613

約数列:

[1, 5, 7, 11, 31, 35, 37, 55, 77, 155, 185, 217, 259, 341, 385, 407, 457, 1085, 1147, 1295, 1705, 2035, 2285, 2387, 2849, 3199, 5027, 5735, 8029, 11935, 12617, 14167, 14245, 15995, 16909, 25135, 35189, 40145, 63085, 70835, 84545, 88319, 99169, 118363, 155837, 175945, 185999, 441595, 495845, 524179, 591815, 779185, 929995, 1090859, 1301993, 2620895, 3669253, 5454295, 5765969, 6509965, 18346265, 28829845, 40361783, 201808915]

約数ペア:

[(1, 201808915), (5, 40361783), (7, 28829845), (11, 18346265), (31, 6509965), (35, 5765969), (37, 5454295), (55, 3669253), (77, 2620895), (155, 1301993), (185, 1090859), (217, 929995), (259, 779185), (341, 591815), (385, 524179), (407, 495845), (457, 441595), (1085, 185999), (1147, 175945), (1295, 155837), (1705, 118363), (2035, 99169), (2285, 88319), (2387, 84545), (2849, 70835), (3199, 63085), (5027, 40145), (5735, 35189), (8029, 25135), (11935, 16909), (12617, 15995), (14167, 14245)]