157982920

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1\times {\mathrm{227}}^1$

素因数の和:502

約数の個数: 64

約数和(自身を含む): 362465280

約数和(自身を除く): 204482360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 137, 227, 254, 274, 454, 508, 548, 635, 685, 908, 1016, 1096, 1135, 1270, 1370, 1816, 2270, 2540, 2740, 4540, 5080, 5480, 9080, 17399, 28829, 31099, 34798, 57658, 62198, 69596, 86995, 115316, 124396, 139192, 144145, 155495, 173990, 230632, 248792, 288290, 310990, 347980, 576580, 621980, 695960, 1153160, 1243960, 3949573, 7899146, 15798292, 19747865, 31596584, 39495730, 78991460, 157982920]

約数ペア:

[(1, 157982920), (2, 78991460), (4, 39495730), (5, 31596584), (8, 19747865), (10, 15798292), (20, 7899146), (40, 3949573), (127, 1243960), (137, 1153160), (227, 695960), (254, 621980), (274, 576580), (454, 347980), (508, 310990), (548, 288290), (635, 248792), (685, 230632), (908, 173990), (1016, 155495), (1096, 144145), (1135, 139192), (1270, 124396), (1370, 115316), (1816, 86995), (2270, 69596), (2540, 62198), (2740, 57658), (4540, 34798), (5080, 31099), (5480, 28829), (9080, 17399)]