81519780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{5413}}^1$

素因数の和:5676

約数の個数: 48

約数和(自身を含む): 229207104

約数和(自身を除く): 147687324

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 251, 502, 753, 1004, 1255, 1506, 2510, 3012, 3765, 5020, 5413, 7530, 10826, 15060, 16239, 21652, 27065, 32478, 54130, 64956, 81195, 108260, 162390, 324780, 1358663, 2717326, 4075989, 5434652, 6793315, 8151978, 13586630, 16303956, 20379945, 27173260, 40759890, 81519780]

約数ペア:

[(1, 81519780), (2, 40759890), (3, 27173260), (4, 20379945), (5, 16303956), (6, 13586630), (10, 8151978), (12, 6793315), (15, 5434652), (20, 4075989), (30, 2717326), (60, 1358663), (251, 324780), (502, 162390), (753, 108260), (1004, 81195), (1255, 64956), (1506, 54130), (2510, 32478), (3012, 27065), (3765, 21652), (5020, 16239), (5413, 15060), (7530, 10826)]