2580495220

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{997}}^1\times {\mathrm{1019}}^1$

素因数の和:2152

約数の個数: 48

約数和(自身を含む): 5472552960

約数和(自身を除く): 2892057740

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 997, 1019, 1270, 1994, 2038, 2540, 3988, 4076, 4985, 5095, 9970, 10190, 19940, 20380, 126619, 129413, 253238, 258826, 506476, 517652, 633095, 647065, 1015943, 1266190, 1294130, 2031886, 2532380, 2588260, 4063772, 5079715, 10159430, 20318860, 129024761, 258049522, 516099044, 645123805, 1290247610, 2580495220]

約数ペア:

[(1, 2580495220), (2, 1290247610), (4, 645123805), (5, 516099044), (10, 258049522), (20, 129024761), (127, 20318860), (254, 10159430), (508, 5079715), (635, 4063772), (997, 2588260), (1019, 2532380), (1270, 2031886), (1994, 1294130), (2038, 1266190), (2540, 1015943), (3988, 647065), (4076, 633095), (4985, 517652), (5095, 506476), (9970, 258826), (10190, 253238), (19940, 129413), (20380, 126619)]